Nils-Erik Wiberg
Visar 443 publikationer
2009
Rail vibrations caused by ground stiffness transitions
Håkan Lane, Per Kettil, Nils-Erik Wiberg
Computational Structural Dynamics and Earthquake Engineering. Editors: M Papadrakakis, D C Charmpis, N D Lagaros and Y Tsompanakis. Vol. 2, Structures and Infrastructures, p. 179-188
Kapitel i bok
2008
Assessment of acceleration modelling for fluid-filled porous media subjected to dynamic loading
Bernd Lenhof, Per Kettil, Kenneth Runesson et al
International Journal for Numerical and Analytical Methods in Geomechanics. Vol. 32 (2), p. 109-119
Artikel i vetenskaplig tidskrift
2008
Moving finite elements and dynamic vehicle interaction
Håkan Lane, Per Kettil, Nils-Erik Wiberg
European Journal of Mechanics, A/Solids. Vol. 27 (4), p. 515-531
Artikel i vetenskaplig tidskrift
2008
Rail- and Roadway Dynamics - uncoupled and coupled analysis
Nils-Erik Wiberg, Per Kettil, Torbjörn Ekevid et al
ECCOMAS Multidisciplinary Jubilee Symposium
Paper i proceeding
2008
Coupled simulation of wave propagation and water flow in soil induced by high-speed trains
Per Kettil, Bernd Lenhof, Kenneth Runesson et al
International Journal for Numerical and Analytical Methods in Geomechanics. Vol. 32 (11), p. 1311-1319
Artikel i vetenskaplig tidskrift
2007
Simulation of inelastic deformation in road structures due to cyclic mechanical and thermal loads
Per Kettil, Bernd Lenhof, Kenneth Runesson et al
Computers & Structures. Vol. 85, p. 59-70
Artikel i vetenskaplig tidskrift
2007
Vehicle-track-underground modeling of rail induced wave propagation
Håkan Lane, Torbjörn Ekevid, Per Kettil et al
Computers and Structures. Vol. 85 (15-16), p. 1215-1229
Artikel i vetenskaplig tidskrift
2007
Simulation of Road Structures Subjected to Dynamic Loading
Bernd Lenhof, Per Kettil, Kenneth Runesson et al
EUROMECH Colloquium 489 "Modelling of Multiphase Materials"
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2006
Computational railway dynamics
Torbjörn Ekevid, Per Kettil, Håkan Lane et al
Computational Mechanics (editors C A Mota Soares, J A C Martins, H C Rodrigues and J A C Ambrósio), p. 577-598
Artikel i vetenskaplig tidskrift
2006
Coupled simulation of wave propagation and water pumping phenomena in driven concrete piles
Per Kettil, Gustav Engström, Nils-Erik Wiberg
Artikel i vetenskaplig tidskrift
2006
Moving mesh adaptivity applied to railway dynamics
Håkan Lane, Per Kettil, Nils-Erik Wiberg
Book of Abstracts, 3rd European Conference on Computational Mechanics (ECCM2006), Lisbon (Portugal) June 2006, p. 406-
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2006
Adaptive solid wave propagation - Influences of boundary conditions in high-speed train applications
Torbjörn Ekevid, Håkan Lane, Nils-Erik Wiberg
Computer Methods in Applied Mechanics and Engineering. Vol. 195 (4-6), p. 236-250
Artikel i vetenskaplig tidskrift
2006
Strength and deformation of arbitrary beam sections using adaptive FEM
Per Kettil, Juan Jose Rodenas Garcia, Claudio Aguilera Torres et al
Artikel i vetenskaplig tidskrift
2006
On the treatment of convective terms in coupled hydro-mechanics for porous media subject to dynamic loading
Bernd Lenhof, Per Kettil, Kenneth Runesson et al
III European Conference on Computational Mechanics
Paper i proceeding
2005
Simulation of coupled hydro-mechanical wave propagation in driven concrete piles
Per Kettil, Gustav Engström, Nils-Erik Wiberg
Int. Conf. on Computational Methods for Coupled Problems in Science and Engineering, CIMNE, Barcelona (2005)
Paper i proceeding
2005
Coupled hydro-mechanical wave propagation in road structures
Per Kettil, Gustav Engström, Nils-Erik Wiberg
Computers & Structures. Vol. 83, p. 1719 - 1729
Artikel i vetenskaplig tidskrift
2005
Absorbing boundary layers for elastic wave propagation
Håkan Lane, Per Kettil, Mikael Enelund et al
COMPLAS VIII, VIII International Conference on Computational Plasticity, CIMNE, Barcelona
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2005
Development of software for structural analysis adapted to construction engineering applications
Per Kettil, Nils-Erik Wiberg
Engineering with Computers (3), p. 225-236
Artikel i vetenskaplig tidskrift
2005
Moving mesh domain adaptation technique - application to train induced wave propagation
Per Kettil, Håkan Lane, Nils-Erik Wiberg
Proceedings of the Second International Conference on Adaptive Modeling and Simulation held in Barcelona, Spain 8 - 10 September 2005, p. 81-91
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2005
An adaptive fixed mesh method for modelling and simulating of unsteady two-phase flows with sharp physical interfaces
Nahidh Sharif, Nils-Erik Wiberg
International journal for numerical methods in engineering. Vol. 64, p. 1256-1273
Artikel i vetenskaplig tidskrift
2004
Towards Integrated Vehicle-track.underground Modelling of Train Induced Wave Propagation
Håkan Lane, Torbjörn Ekevid, Nils-Erik Wiberg
Book of Abstracts. Volume I: Plenary Sessions, Invited Parallel Sessions, Contributed Sessions and Posters. 4th European Congress on Computational Methods in Applied Sciences and Engineering, July 24-28 2004 Jyväskylä, Finland, p. 115-
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2004
Adaptive multigrid for FE computations in plasticity
Torbjörn Ekevid, Per Kettil, Nils-Erik Wiberg
Computers & Structures. Vol. 82, p. 2413-2424
Artikel i vetenskaplig tidskrift
2004
Modelling train passage in curves with isoparametric differntial constraint equations.
Håkan Lane, Per Kettil, Nils-Erik Wiberg
Proceedings of the 17th Nordic Seminar on Computational Mechanics, p. 141-144
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2004
Adaptive FE-Simulations In 3D Using Multigrid Solver
Per Kettil, Torbjörn Ekevid, Nils-Erik Wiberg
WCCM VI in conjunction with APCOM04, Beijing, China, Sept. 5-10, (2004)
Paper i proceeding
2004
An Adaptive-Fixed-Mesh Method for Modelling and Simulating of Unsteady Two-Phase Flows with Sharp Physical Interfaces
Nahidh Hamid Sharif, Nils-Erik Wiberg
Rapport
2004
Simulation of failure of structures using dynamics and optimization techniques
Per Kettil, Nils-Erik Wiberg
Computers & Structures. Vol. 82, p. 815-828
Artikel i vetenskaplig tidskrift
2004
FE simulations of wave propagation in saturated porous media - examples and applications
Gustav Engström, Per Kettil, Nils-Erik Wiberg
European Congress on Computational Methods in Applied Sciences and Engineering, Jyväskylä, Finland, 24-28 July, (2004)
Paper i proceeding
2003
Analysis of High-speed Train Related Ground Vibrations by a Hybrid Method
Torbjörn Ekevid, Nils-Erik Wiberg
Rapport
2003
Reflection waves from high speed trains - adaptive FE solutions
Torbjörn Ekevid, Håkan Lane, Nils-Erik Wiberg
Mekanikdagar 2003, Göteborg 13 - 15 Augusti., p. 66-
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2003
Modelling of Railway Vehicle-Track-Underground Dynamic Interaction Induced by High-Speed Trains
Martin X.D. Li, Torbjörn Ekevid, Nils-Erik Wiberg
Rapport
2003
Interface-Capturing Finite-Element-Technique (ICFET) for Transient Two-Phase Flow
Nahidh Hamid Sharif, Nils-Erik Wiberg
Engineering Computations. Vol. 20 (5/6), p. 973-985
Artikel i vetenskaplig tidskrift
2003
Adaptive Multigrid FE-technique for Computational Plasticity
Torbjörn Ekevid, Per Kettil, Nils-Erik Wiberg
VII International Conference on Computational Plasticity, COMPLAS 2003, Barcelona, Spain, April 7-10, (2003)
Paper i proceeding
2003
Wave Propagation Related to High-Speed Train - a Scaled Boundary FE-approach for Unbounded Domains
Torbjörn Ekevid, Nils-Erik Wiberg
Computer Methods in Applied Mechanics and Engineering. Vol. 191 (36), p. 3947-3964
Artikel i vetenskaplig tidskrift
2003
Rail induced wave propagation in soil facing sloping rock
Håkan Lane, Torbjörn Ekevid, Nils-Erik Wiberg
Proceedings of the 16th Nordic Seminar on Computational Mechanics in combination with the Pål G. Bergan Anniversary Seminar 16-18 October, 2003 Trondheim, Norway, p. 141-144
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2003
Towards fully mesh adaptive FE-simulations in 3D using multigrid solver
Per Kettil, Torbjörn Ekevid, Nils-Erik Wiberg
Second MIT Conference on Computational Fluid and Solid Mechanics, June 17-20, (2003)
Paper i proceeding
2003
Adaptive Solid Wave Propagation - Influences of Boundary Conditions in High-Speed Train Applications
Håkan Lane, Torbjörn Ekevid, Nils-Erik Wiberg
Proceedings of the First International Conference on Adaptive Modeling and Simulation held in Göteborg, Sweden 29 September - 1 October 2003, p. 93-94
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2003
Computational Methods adapted to Structural Engineering Practice
Per Kettil, Nils-Erik Wiberg
IACM Special Interest Conference on Adaptive Modeling, Göteborg, Sweden, September 29 - October 1, (2003).
Paper i proceeding
2003
Towards fully mesh adaptive FE-simulations in 3D using multi-grid solver
Per Kettil, Torbjörn Ekevid, Nils-Erik Wiberg
Computers & Structures. Vol. 81, p. 735-746
Artikel i vetenskaplig tidskrift
2003
An integrated Vehicle-track-ground Model for Investigating the Wheel/rail Dynamic Forces due to High Axle Loads
Martin X.D. Li, Torbjörn Ekevid, Nils-Erik Wiberg
Rapport
2002
Adaptive ICT-Procedure for Non-linear Seepage Flows with Free Surface in Porous Media
Nahidh Hamid Sharif, Nils-Erik Wiberg
Communication in Numerical Methods in Engineering. Vol. 18, p. 161-176
Artikel i vetenskaplig tidskrift
2002
Application of 3D Solid Modeling and Simulation Programs to a Bridge Structure
Per Kettil, Nils-Erik Wiberg
Engineering with Computers. Vol. 18, p. 160-169
Artikel i vetenskaplig tidskrift
2002
Eigenproblem Analysis-h-Adaptivity and a Nonlinear Algorithm
Patrik Hager, Nils-Erik Wiberg
WCCM V, Fifth World Congress on Computational Mechanics, Vienna, Austria, July 7-12, 2002
Paper i proceeding
2002
An integrated vehicle-track-ground model for investigating the dynamic response of railway tracks due to high-speed trains
Martin X.D. Li, Torbjörn Ekevid, Nils-Erik Wiberg
EURODYN 2002, Munich, Germany, September 2-5, 2002
Paper i proceeding
2002
Nonlinear FE-modelling of road base material
Johan Olsson, Nils-Erik Wiberg
NUMOG XIII, 8 th international conference on Numerical Methods in Geomechanics, Rome, April 10-12, 2002, p. 6-
Paper i proceeding
2002
Application of 3D Solid Modeling and Simulation Programs to a Bridge Structure
Per Kettil, Nils-Erik Wiberg
Engineering with Computers. Vol. 18, p. pp. 160-169
Artikel i vetenskaplig tidskrift
2002
A comparison of parallel implementation of explicit DG and central difference method
Torbjörn Ekevid, Nils-Erik Wiberg
Communication in Numerical Methods in Engineering. Vol. 18, p. 585-597
Artikel i vetenskaplig tidskrift
2002
Wave Propagation Related to High-Speed Train - a Scaled Boundary FE-approach for Unbounded Domains
Torbjörn Ekevid, Nils-Erik Wiberg
Computer Methods in Applied Mechanics and Engineering. Vol. 191 (36), p. pp. 3947-3964
Artikel i vetenskaplig tidskrift
2002
Integrated computational engineering
Per Kettil, Nils-Erik Wiberg
WCCM V, Fifth World Congress on Computational Mechanics, Vienna, Austria, July 7-12, (2002)
Paper i proceeding
2002
Computational Wave Propagation by Adaptive Multigrid FE-Technique
Torbjörn Ekevid, Nils-Erik Wiberg
Artikel i vetenskaplig tidskrift
2002
Tillämpad Virtual Reality för stora och komplexa byggnader
Odd Tullberg, Nils-Erik Wiberg
Rapport
2002
Interface Capturing Finite - Element Technique (ICFET) for transient Two-Phase Flow
Nahidh Hamid Sharif, Nils-Erik Wiberg
Conference Finite Element Method, Group 42, Ibiza, May 30-31, 2002
Paper i proceeding
2002
Adaptive ICT-Procedure for Non-linear Seepage Flows with Free Surface in Porous Media
Nahidh Hamid Sharif, Nils-Erik Wiberg
Communication in Numerical Methods in Engineering. Vol. 18, p. pp. 161-176
Artikel i vetenskaplig tidskrift
2002
A comparison of parallel implementation of explicit DG and central difference method
Torbjörn Ekevid, Nils-Erik Wiberg
Communication in Numerical Methods in Engineering. Vol. 18, p. pp. 585-597
Artikel i vetenskaplig tidskrift
2001
Finite Element Modelling of High-Speed Train induced Track-Ground Vibrations
Martin X.D. Li, Alexander Smekal, Nils-Erik Wiberg
8th International Congress on Sound and Vibration, ICSV8, 2-6 July, 2001, Hong Kong
Paper i proceeding
2001
Adaptive 3D Finite Element Analysis in Structural Design
Per Kettil, Nils-Erik Wiberg
ECCM-2001, Cracow, Polen, June 26-29, (2001)
Paper i proceeding
2001
Free Surface Flow through Rock-Fill Dams Analyzed by FEM with Level Set Approach
Nahidh Hamid Sharif, Nils-Erik Wiberg
Computational Mechanics. Vol. 27 (3), p. 233-243
Artikel i vetenskaplig tidskrift
2001
Computing Steady Motion of Incompressible Fluid Interface in Porous Media Flow
Nahidh Hamid Sharif, Nils-Erik Wiberg
ECCOMAS CFD 2001, September 4-7, 2001, Swansea, Wales
Paper i proceeding
2001
Interactive Design and Investigation of Physical Bridges using Virtual Models
Mike Connell, Odd Tullberg, Per Kettil et al
First MIT Conference on Computational Fluid and Solid Mechanics, pp. 608-611. June 12-15, (2001)
Paper i proceeding
2001
Adaptive FEA of Wave Propagation Induced by High-Speed Trains
Torbjörn Ekevid, Xiangdong Li, Nils-Erik Wiberg
Computers and Structures. Vol. 79 (29-30), p. pp. 2693-2704
Artikel i vetenskaplig tidskrift
2001
Postprocessing Techniques and h-Adaptive Finite Element-Eigenproblem Analysis
Romualdas Bausys, Nils-Erik Wiberg
Computers and Structures. Vol. 79 (22-25), p. 2039-2052
Artikel i vetenskaplig tidskrift
2001
Introduktion till byggnadsmekanik, Byggande och byggteknik för V1
Nils-Erik Wiberg, Torbjörn Ekevid
Introduktion till byggnadsmekanik, Byggande och byggteknik för V1, p. 14-
Kapitel i bok
2001
On Parallel Computation and Wave Propagation
Torbjörn Ekevid, Nils-Erik Wiberg
Invited paper, Trends in Computational Structural Mechanics, May 21-23, 2001, Lake Constance, Austria
Paper i proceeding
2001
Free Surface Flow through Rock-Fill Dams Analyzed by FEM with Level Set Approach
Nahidh Hamid Sharif, Nils-Erik Wiberg, Mårten Levenstam
Computational Mechanics. Vol. 27 (3), p. pp. 233-243
Artikel i vetenskaplig tidskrift
2001
On Wave Propagation Problems Associated to High-speed Trains
Torbjörn Ekevid, Nils-Erik Wiberg, Martin X.D. Li
ECCM-2001, June 26-29, 2001, Cracow, Polen
Paper i proceeding
2001
Towards Fully Mesh Adaptive FE-Simulations in 3D Using Multi-Grid Solver
Per Kettil, Torbjörn Ekevid, Nils-Erik Wiberg
Rapport
2001
Postprocessing Techniques and h-Adaptive Finite Element-Eigenproblem Analysis
Romaldas Bausys, Patrik Hager, Nils-Erik Wiberg
Computers and Structures. Vol. 79 (22-25), p. pp. 2039-2052
Artikel i vetenskaplig tidskrift
2001
Simulation of Failure of Structures Using Dynamics and Optimisation Techniques
Per Kettil, Nils-Erik Wiberg
Rapport
2001
Adaptive FEA of Wave Propagation Induced by High-Speed Trains
Torbjörn Ekevid, Martin Xiangdong Li, Nils-Erik Wiberg
Computers and Structures,. Vol. 79 (29-30), p. 2693-2704
Artikel i vetenskaplig tidskrift
2000
Computational Modelling and Simulation in Structural and Civil Engineering, Proposal for a Centre of Excellence
Nils-Erik Wiberg, Olof Friberg
Rapport
2000
Finite Element Analysis of Road Rutting
Johan Olsson, Ling Fu Zeng, Nils-Erik Wiberg
European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000, Barcelona, Spain, September 11-14, 2000
Paper i proceeding
2000
Free Surface Flow Predictions by an Interface-Capturing Finite Element Technique
Hamid Sharif Nahidh, Nils-Erik Wiberg, Mårten Levenstam
International Journal for Computational Civil and Structural Engineering. Vol. 1 (2), p. 98-106
Artikel i vetenskaplig tidskrift
2000
Computational Modelling and Simulation in Structural and Civil Engineering
Nils-Erik Wiberg, Olof Friberg
Rapport
2000
Adaptive solid modeling using our program FEM90
Torbjörn Ekevid, Per Kettil, Nils-Erik Wiberg
XIII Nordic Seminar on Computational Mechanics, Oslo, 20-21 oktober 2000
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
2000
Error Estimation and h-adaptivity for Eigenfrequency Analysis of Plates in Bending: Numerical Results
Patrik Hager, Nils-Erik Wiberg
Computers and Structures. Vol. 78 (1-3), p. 1-10
Artikel i vetenskaplig tidskrift
2000
The Rational Krylov Algorithm for Nonlinear Eigenvalue Problems
Patrik Hager, Nils-Erik Wiberg
Computational Mechanics for the Twenty-First Century / edited by B. H. W. Topping, p. pp. 379-402
Kapitel i bok
2000
Postrocessing Techniques and h-Adaptive FE-Eigenproblem Analysis
Romualdas Bausys, Patrik Hager, Nils-Erik Wiberg
Rapport
2000
Integrating Modelling, Simulation and Visualisation in Immersive VR Environments - A Tool in Bridge Design
Mike Connell, Per Kettil, Harald Tägnfors et al
IASS-IACM 2000, Fourth International Colloquium on Computation of Shell & Spatial Structures, Chania-Crete, Greece, June 4-7, (2000)
Paper i proceeding
2000
Wave Propagation-Explicit Code for Parallel Computing
Torbjörn Ekevid, Nils-Erik Wiberg
European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000, Barcelona, Spain, September 11-14, 2000
Paper i proceeding
2000
Finite Element Analysis of a Multi Physics Problem
Ling Fu Zeng, Johan Olsson, Nils-Erik Wiberg
European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000, Barcelona, Spain, September 11-14, 2000
Paper i proceeding
2000
Wave Propagation Related to Moving Loads Close to Critical Speed
Torbjörn Ekevid, Nils-Erik Wiberg
Wave 2000, December 13-15, 2000, Bochum, Germany
Paper i proceeding
2000
Adaptive Finite Element Analysis of Wave Propagation under Moving Loads Induced by High-Speed Trains
Torbjörn Ekevid, Martin X.D. Li, Nils-Erik Wiberg
Keynote lecture, European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000, Barcelona, Spain, September 11-14, 2000
Paper i proceeding
2000
Adaptive 3D solid modeling and simulation in computational structural design
Per Kettil, Nils-Erik Wiberg
ICTAM2000 20:th International Congress of Theoretical and Applied Mechanics, Chicago, USA, August 27 - September 2, (2000)
Paper i proceeding
2000
Use and Implementation of the Recovery Based Error Estimators in Structural Analysis
Saulius Ziukas, Nils-Erik Wiberg
European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2000, Barcelona, Spain, September 11-14, 2000
Paper i proceeding
2000
Error Estimation and h-adaptivity for Eigenfrequency Analysis of Plates in Bending Numerical Results
Patrik Hager, Nils-Erik Wiberg
Computers and Structures. Vol. 78 (1-3), p. pp. 1-10
Artikel i vetenskaplig tidskrift
2000
Free Surface Flow Predictions by an Interface-Capturing Finite Element Technique
Nahidh Hamid Sharif, Nils-Erik Wiberg, Mårten Levenstam
International Journal for Computational Civil and Structural Engineering. Vol. 1 (2), p. pp. 98-106
Artikel i vetenskaplig tidskrift
2000
Finite Element Modeling of a Coupled Thermo-Hydro-Mechanical Process in Porus Media
Ling Fu Zeng, Nils-Erik Wiberg
Rapport
2000
The Rational Krylov Algorithm for Nonlinear Eigenvalue Problems, in Computational Mechanics for the Twenty-First Century
Patrik Hager, Nils-Erik Wiberg
Ed. B.H.W.Topping, Saxe-Coburg Publications, Edinburgh, UK, p. 379-402
Artikel i vetenskaplig tidskrift
1999
Adaptive Strategy for Acoustic Analysis
Romualdas Bausys, Nils-Erik Wiberg
Invited lecture, 6th International Conference on Modern Building Materials, Structures and Techniques, Vilnius, Lihuania, May 19-22 1999, p. 6-
Paper i proceeding
1999
Wave Propagation in Solids by Adaptive DG-FE-Procedure
Nils-Erik Wiberg, Torbjörn Ekevid, Li Xiangdong
Keynote lecture, ECCM-Congress on Computational Mechanics-Solids, Structures and Coupled Problems, Munich, Germany, August 31 - September 2 1999
Paper i proceeding
1999
Free Surface Flow in Dams with Level Set Approach and Adaptive FEM
Nahidh Hamid Sharif, Nils-Erik Wiberg
ECCM-Congress on Computational Mechanics-Solids, Structures and Coupled Problems, Munich, Germany, August 31 - September 2 1999
Paper i proceeding
1999
Adaptive Finite Element Strategy for Acoustic Problems
Romualdas Bausys, Nils-Erik Wiberg
Journal of Sound and Vibration. Vol. 226 (5), p. 905-922
Artikel i vetenskaplig tidskrift
1999
Accuracy assessment of maximum displacement and stress
Per Kettil, Nils-Erik Wiberg
Twelfth Nordic Seminar on Computational Mechanics, Helsingfors, 22-23 oktober 1999
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
1999
Adaptive FE-analysis of Column Supported Reissner-Mindlin Plates
Per Kettil, Nils-Erik Wiberg
Computers and Structures. Vol. 72, p. 605-626
Artikel i vetenskaplig tidskrift
1999
Adaptive Finite Element Procedures for Linear and Non-Linear Dynamics
Nils-Erik Wiberg, Xiangdong Li
International Journal for Numerical Methods in Engineering. Vol. 46, p. pp. 1781-1802
Artikel i vetenskaplig tidskrift
1999
Adaptive Design and Analysis of Structures an Integration of Tools
Per Kettil, Nils-Erik Wiberg
Design Optimization. Vol. 1, p. 440-464
Artikel i vetenskaplig tidskrift
1999
Adaptive Design and Analysis of Structures an Integration of Tools
Per Kettil, Nils-Erik Wiberg
Design Optimization. Vol. 1, p. pp. 440-464
Artikel i vetenskaplig tidskrift
1999
Adaptive Finite Element Strategy for Acoustic Problems
Romaldas Bausys, Nils-Erik Wiberg
Journal of Sound and Vibration. Vol. 2265, p. pp. 905-922
Artikel i vetenskaplig tidskrift
1999
Improved Eigenfrequencies and Eigenmodes in Free Vibration Analysis
Nils-Erik Wiberg, Romualdas Bausys, Patrik Hager
Computers and Structures. Vol. 73, p. 79-89
Artikel i vetenskaplig tidskrift
1999
Integration on CAD and FEM in an Adaptive Design Process
Per Kettil, Nils-Erik Wiberg
ECCM-Congress on Computational Mechanics-Solids, Structures and Coupled Problems, Munich, Germany, August 31 - September 2 (1999)
Paper i proceeding
1999
Nonlinear Structural Dynamic Analysis by a Discontinuous Galerkin Finite Element Method
Nils-Erik Wiberg, Xiangdong Li
in H.A. Mang and F.G. Rammerstorfer Eds IUTAM Symposium on Discretization Methods in Structural Mechanics, p. pp. 115-122
Artikel i vetenskaplig tidskrift
1999
Postrocessing Techniques in FE-Eigenproblem Analysis
Romualdas Bausys, Nils-Erik Wiberg
Keynote lecture, Twelfth Nordic Seminar on Computational Mechanics, Helsingfors, 22 - 23 oktober 1999
Paper i proceeding
1999
Adaptive FE-analysis of Column Supported Reissner-Mindlin Plates
Per Kettil, Nils-Erik Wiberg
Computers and Structures. Vol. 72, p. pp. 605-626
Artikel i vetenskaplig tidskrift
1999
Adaptive Eigenfrequency analysis by Superconvergent Patch Recovery
Patrik Hager, Nils-Erik Wiberg
Computer Methods in Applied Mechanics and Engineeering. Vol. 176, p. pp. 441-462
Artikel i vetenskaplig tidskrift
1999
Adaptive h-version eigenfrequency analysis
Nils-Erik Wiberg, Romualdas Bausys, Patrik Hager
Computers and Structures. Vol. 71, p. 565-584
Artikel i vetenskaplig tidskrift
1999
Adaptive Finite Element Procedures for Linear and Non-Linear Dynamics
Nils-Erik Wiberg, Xiangdong Li
International Journal for Numerical Methods in Engineering. Vol. Vol. 46, p. 1781-1802
Artikel i vetenskaplig tidskrift
1999
Nonlinear Structural Dynamic Analysis by a Discontinuous Galerkin Finite Element Method
Nils-Erik Wiberg, Xiangdong Li
H.A. Mang and F.G. Rammerstorfer (Eds): IUTAM Symposium on Discretization Methods in Structural Mechanics, p. 115-122
Paper i proceeding
1999
h-Adaptive Eigenfrequency Analysis
Romualdas Bausys, Patrik Hager, Nils-Erik Wiberg
Artikel i vetenskaplig tidskrift
1999
Adaptive h-version eigenfrequency analysis
Nils-Erik Wiberg, Romualdas Bausys, Patrik Hager
Computers and Structures. Vol. 71, p. pp. 565-584
Artikel i vetenskaplig tidskrift
1999
Improved Eigenfrequencies and Eigenmodes in Free Vibration Analysis
Nils-Erik Wiberg, Patrik Hager
Computers and Structures. Vol. 73, p. pp. 79-89
Artikel i vetenskaplig tidskrift
1999
Adaptive Eigenfrequency analysis by Superconvergent Patch Recovery
Patrik Hager, Nils-Erik Wiberg
Computer Methods in Applied Mechanics and Engineeering. Vol. 176, p. 441-462
Artikel i vetenskaplig tidskrift
1999
Interface-Capturing Technique (ICT) for Computation of Steady Seepage Flows with Free Surface in Porous Media
Nahidh Hamid Sharif, Nils-Erik Wiberg
Keynote lecture, 3:rd National Congress on Computational Mechanics, Volos, Greece, June 24-25, 1999
Paper i proceeding
1999
Error Estimation and Adaptivity for FE-Analysis in Acoustics
Nils-Erik Wiberg, Romualdas Bausys
Keynote lecture, IV Congress Métodos Numericos en Ingenieria, Sevilla, Spain, June 7-10 1999, p. 19-
Paper i proceeding
1999
Viscoplastic Finite Element Modeling of Rutting Phenomena in Road-Pavements
Ling Fu Zeng, Johan Olsson, Nils-Erik Wiberg
ECCM-Congress on Computational Mechanics-Solids, Structures and Coupled Problems, Munich, Germany, August 31 - September 2 1999
Paper i proceeding
1998
Adaptive Finite Element Procedures for Linear and Nonlinear Dynamics
Nils-Erik Wiberg, Xiangdong Li
Rapport
1998
Road Mechanics
Nils-Erik Wiberg, Ling Fu Zeng, Johan Olsson
Seminar on pavement design and road mechanics, Stockholm, Sweden, November 11, 1998, p. 14-
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
1998
Adaptive plate bending analysis with column interaction
Per Kettil, Nils-Erik Wiberg
Fourth World Congress on Computational Mechanics, Buenos Aires, Argentina, June 29 - July 2, (1998)
Paper i proceeding
1998
Seminar on Pavement Design and Road Mechanics, Stockholm, ´98
Nils-Erik Wiberg, Anders Huvstig
Rapport
1998
Real Time Simulation of Deformable Objects in Medicine A Finite Element Approach
Mikael Backlund, Mats Färnstrand, Patrik Kruse et al
Rapport
1998
Adaptive design and analysis an integration of tools
Per Kettil, Nils-Erik Wiberg
Eleventh Nordic Seminar on Computational Mechanics Stockholm, 22-23 October 1998
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
1998
Error Estimation and h-A daptivity for Eigenfrequency Analysis of Plates in Bending
Patrik Hager, Nils-Erik Wiberg
Computational Structures Technology/Engineering Computational Technology Conference, Edinburgh, Scotland, August 18 21 1998, p. 8-
Paper i proceeding
1998
Adaptive FE-analysis of column supported Reissner-Mindlin Plates
Per Kettil, Nils-Erik Wiberg
Rapport
1998
Introduktion till byggnadsmekanik, Byggande och byggteknik för V1
Nils-Erik Wiberg, Torbjörn Ekevid
Rapport
1998
Error Estimation and adaptivity for h-version adaptivity
Nils-Erik Wiberg, Patrik Hager
Advances in Adaptive Computational Methods in Mechanics / edited by P. Ladevéze, J. T. Oden, p. pp. 461-475
Kapitel i bok
1998
An Overview of Currently Existing Methods for Rutting Prediction and Control in Road-Pavements
Johan Olsson, Ling Fu Zeng, Nils-Erik Wiberg
Rapport
1998
Adaptive Eigenfrequency Analysis by Superconvergent Patch Recovery
Patrik Hager, Nils-Erik Wiberg
CMAME Special issue New Advances in Adaptive Computational Mechanics, p. 60-
Artikel i vetenskaplig tidskrift
1998
Implementation and Adaptivity of a Space-Time Finite Element Method for Structural Dynamics
Xiangdong Li, Nils-Erik Wiberg
Computer Methods in Applied Mechanics and Engineering. Vol. 156, p. pp. 211-229
Artikel i vetenskaplig tidskrift
1998
An Overview of Currently Existing Methods for Rutting Prediction and Control in Road-Pavements
Nils-Erik Wiberg, Johan Olsson, Ling Fu Zeng
Rapport
1998
FE-procedures for conductive-convective heat transfer,
Nils-Erik Wiberg, Jan Frykestig
International Conference on Computational Methods in Flow Analysis, Okayama, Japan, September 5-8, 1988, p. 8-
Paper i proceeding
1998
Seminar on Pavement Design and Road Mechanics, Stockholm ´98
Anders Huvstig, Nils-Erik Wiberg
Rapport
1998
Error Estimation and adaptivity for h-version adaptivity
Nils-Erik Wiberg, Patrik Hager
P. Ladevéze and J. T. Oden (Eds), Advances in Adaptive Computational Methods in Mechanics, p. 461-475
Artikel i vetenskaplig tidskrift
1998
Implementation and Adaptivity of a Space-Time Finite Element Method for Structural Dynamics
Nils-Erik Wiberg, Xiangdong Li
Computer Methods in Applied Mechanics and Engineering. Vol. 156, p. 211-229
Artikel i vetenskaplig tidskrift
1998
Adaptive Finite Element Strategy for Acoustic Problems
Romualdas Bausys, Nils-Erik Wiberg
Rapport
1998
Adaptive Discontinuous Galerkin Procedures for Linear and Nonlinear Structural Dynamics
Nils-Erik Wiberg, Xiangdong Li
Workshop on New Advances in Adaptive Computational Methods in Mechanics, Cachan, Paris, September 17 19 1997, p. 20 -
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
1998
Finite Element Modeling of Rutting Phenomena in Pavement Structures
Nils-Erik Wiberg, Ling Fu Zeng, Johan Olsson
The 4th World Congress on Computational Mechanics, Buenos Aires, Argentina, June 29-July 2. 1998, p. 7-
Paper i proceeding
1997
Adaptive Finite Element Procedure for Crack Analysis
Saulius Ziukas, Nils-Erik Wiberg
K. Gylltoft et al. (Eds): Advanced Design of Concrete Structures, CIMNE, p. 33-40
Artikel i vetenskaplig tidskrift
1997
Super Convergent Patch Recovery - A key to quality assessed FE-solutions
Nils-Erik Wiberg
Advances in Engineering Software. Vol. 28, p. pp. 85-95
Artikel i vetenskaplig tidskrift
1997
Advanced Design of Concrete Structures
Kent Gylltoft, Björn Engström, Lars-Olof Nilsson et al
Samlingsverk (redaktörskap)
1997
Error Estimation and Adaptivity for h-version Eigenfrequency Analysis
Nils-Erik Wiberg, Patrik Hager
Rapport
1997
Superconvergent Patch Recovery in Problems of mixed form
Nils-Erik Wiberg, Abdulwahab Fethi
Communications in Numerical Methods in Engineering. Vol. 13, p. 207-217
Artikel i vetenskaplig tidskrift
1997
Implicit and Explicit Discontinuous Galerkin Finite Element Procedures for Linear and Nonlinear Structural Dynamic Analysis
Nils-Erik Wiberg, Xiangdong Li
Rapport
1997
Adaptive procedure with superconvergent patch recovery for linear parabolic problems
Saulius Ziukas, Nils-Erik Wiberg
Finite Element Methods - fifty years of the Courant element /edited by Krizek et al., p. pp. 303-314
Kapitel i bok
1997
Nonlinear Structural Dynamic Analysis by a Discontinous Galerkin Finite Element Method
Nils-Erik Wiberg, Xiangdong Li
Rapport
1997
Super Convergent Patch Recovery - A key to quality assessed FE-solutions
Nils-Erik Wiberg
Advances in Engineering Software. Vol. 28, p. 85-95
Artikel i vetenskaplig tidskrift
1997
Advanced Design of Concrete Structures, CIMNE, Barcelona
Nils-Erik Wiberg, Kent Gylltoft, Björn Engström et al
Rapport
1997
Superconvergent Patch Recovery in Problems of mixed form
Nils-Erik Wiberg, Fethi Abdulwahab
Communications in Numerical Methods in Engineering. Vol. 13, p. pp. 207-217
Artikel i vetenskaplig tidskrift
1997
Accuracy Assessed Eigenfrequency Analysis by Node Patch Recovery
Nils-Erik Wiberg, Patrik Hager, Romualdas Bausys
Rapport
1997
Adaptive FE-solution of column (Reissner-Mindlin) plates
Per Kettil, Nils-Erik Wiberg
Tenth Nordic Seminar on Computational Mechanics, Tallinn, Estland, 24-25 oktober 1997
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
1997
Error estimation with postprocessed finite element solutions
Nils-Erik Wiberg, Fethi Abdulwahab
Computers and Structures. Vol. 64 (1-4), p. pp. 113-137
Artikel i vetenskaplig tidskrift
1997
Adaptive procedure with superconvergent patch recovery for linear parabolic problems
Saulius Ziukas, Nils-Erik Wiberg
Krizek, Neiettanmaki and Stenberg (Eds): Finite Element Methods - fifty years of the Courant element, Marcel Dekker Inc, New York, p. 303-314
Kapitel i bok
1997
Error Estimation and Adaptive Procedures Based on Superconvergent Patch Recovery (SPR) Techniques
Nils-Erik Wiberg, Fethi Abdulwahab, Xiangdong Li
Archieves of Computational Methods in Engineering. Vol. 4 (3), p. 203-242
Artikel i vetenskaplig tidskrift
1997
Error estimation with postprocessed finite element solutions
Nils-Erik Wiberg, Abdulwahab Fethi
Computers and Structures. Vol. 64 (1-4), p. 113-137
Artikel i vetenskaplig tidskrift
1997
Error Estimation and Adaptive Procedures Based on Superconvergent Patch Recovery SPR Techniques
Nils-Erik Wiberg, Fethi Abdulwahab, Xiangdong Li
Archieves of Computational Methods in Engineering. Vol. 4 (3), p. pp. 203-242
Artikel i vetenskaplig tidskrift
1997
Adaptive Finite Element Procedure for Crack Analysis
Saulius Ziukas, Nils-Erik Wiberg
Advanced Design of Concrete Structures / edited by K. Gyllentoft, p. pp. 33-40
Kapitel i bok
1996
Structural Dynamic Analysis by a Time-discontinuous Galerkin Finite Element Method,
Nils-Erik Wiberg, Xiangdong Li
International Journal For Numerical Methods in Engineering,. Vol. 39, p. 2131-2152
Artikel i vetenskaplig tidskrift
1996
Adaptive Finite Element Procedures in Elasticity and Plasticity
Nils-Erik Wiberg, Xiangdong Li, Abdulwahab Fethi
Engineering with Computers. Vol. 12, p. 120-141
Artikel i vetenskaplig tidskrift
1996
Error estimation and adaptive procedures based on superconvergent patch recovery (SPR) techniques
Nils-Erik Wiberg, Abdulwahab Fethi, Xiangdong Li
Rapport
1996
Adaptive Finite Element Procedures in Elasticity and Plasticity
Nils-Erik Wiberg, Xiangdong Li, Fethi Abdulwahab
Engineering with Computers. Vol. 12, p. pp. 120-141
Artikel i vetenskaplig tidskrift
1996
Structural Dynamic Analysis by a Time-discontinuous Galerkin Finite Element Method
Xiangdong Li, Nils-Erik Wiberg
International Journal For Numerical Methods in Engineering. Vol. 39, p. pp. 2131-2152
Artikel i vetenskaplig tidskrift
1996
The superconvergent patch recovery in problems of mixed form
Nils-Erik Wiberg, Abdulwahab Fethi
Rapport
1996
Adaptive h-version eigenfrequency analysis
Nils-Erik Wiberg, Romualdas Bausys, Patrik Hager
Rapport
1996
Improved eigenfrequencies and eigenmodes in free vibration analysis
Nils-Erik Wiberg, Romualdas Bausys, Patrik Hager
Rapport
1995
uperconvergent Patch Recovery - A Key to Quality Assessed FE-Solutions
Nils-Erik Wiberg
Rapport
1995
Postprocessed error estimation in free vibration analysis
Nils-Erik Wiberg, Romualdas Bausys
Rapport
1995
Improved element stresses for node and element patches using superconvergent patch recovery
Nils-Erik Wiberg, Fethi Abdulwahab, Saulius Ziukas
Communications in Numerical Methods in Engineering. Vol. 11, p. pp. 619-627
Artikel i vetenskaplig tidskrift
1995
Error estimation for eigenfrequencies and eigenmodes in dynamics
Nils-Erik Wiberg, Romualdas Bausys
Rapport
1995
Understanding the finite element method
Nils-Erik Wiberg
N-E Wiberg (ed): Advances in finite element technology, CIMNE, Barcelona, p. 90-113
Kapitel i bok
1995
Adaptive Finite Element Procedures In Elasticity And Plasticity
Nils-Erik Wiberg, Xiang Dong Li, Abdulwahab Fethi
Rapport
1995
On understanding and teaching of the finite element method
Nils-Erik Wiberg
Communications in Numerical Methods in Engineering. Vol. 11, p. 105-115
Artikel i vetenskaplig tidskrift
1995
Eighth Nordic Seminar on Computational Mechanics, Short Papers, Göteborg November 17-18, 1995
Ragnar Larsson, Nils-Erik Wiberg
Bok
1995
Improved element stresses for node and element patches using superconvergent patch recovery
Nils-Erik Wiberg, Abdulwahab Fethi, Saulius Ziukas
Communications in Numerical Methods in Engineering. Vol. 11, p. 619-627
Artikel i vetenskaplig tidskrift
1995
Understanding the finite element method
Nils-Erik Wiberg
Advances in finite element technology ed Wiberg, N.- E., p. pp. 90-113
Kapitel i bok
1995
Implementation and adaptivity of a space-time finite element method for structural dynamics
Xiangdong Li, Nils-Erik Wiberg
Rapport
1995
Error Estimation with Postprocessed Finite Element Solutions
Nils-Erik Wiberg, Abdulwahab Fethi
Rapport
1995
On understanding and teaching of the finite element method
Nils-Erik Wiberg
Communications in Numerical Methods in Engineering. Vol. 11, p. pp. 105-115
Artikel i vetenskaplig tidskrift
1995
Improved element stresses for node and element patches using superconvergent patch recovery
Nils-Erik Wiberg, Abdulwahab Fethi, Saulius Ziukas
Rapport
1995
Superconvergent Patch Recovery - A Key to Quality Assessed FE Solution
Nils-Erik Wiberg
Rapport
1995
Structural dynamic analysis by a time-discontinuous Galerkin finite element method
Xiangdong Li, Nils-Erik Wiberg
Rapport
1994
A postprocessed error estimate and an adaptive procedure for the semidiscrete finite element method in dynamic analyses
Nils-Erik Wiberg, Xiangdong Li
International Journal of Numerical Methods in Engineering. Vol. 37, p. pp. 3585-3603
Artikel i vetenskaplig tidskrift
1994
Enhanced Superconvergent Patch Recovery incorporating equilibrium and boundary conditions
Nils-Erik Wiberg, Abdulwahab Fethi, Saulius Ziukas
International Journal of Numerical Methods in Engineering. Vol. 37, p. 3417-3440
Artikel i vetenskaplig tidskrift
1994
A posteriori error estimate by element patch post-processing, adaptive analysis in energy and L2 norms
Xiangdong Li, Nils-Erik Wiberg
Computer and Structures. Vol. 53 (4), p. pp. 907-919
Artikel i vetenskaplig tidskrift
1994
A postprocessed error estimate and an adaptive procedure for the semidiscrete finite element method in dynamic analyses
Nils-Erik Wiberg, Xiangdong Li
International Journal of Numerical Methods in Engineering. Vol. 37, p. 3585-3603
Artikel i vetenskaplig tidskrift
1994
A posteriori error estimate by element patch post-processing, adaptive analysis in energy and L2 norms
Xiangdong Li, Nils-Erik Wiberg
Computer and Structures. Vol. 53 (4), p. 907-919
Artikel i vetenskaplig tidskrift
1994
FEM-94 A seminar on Non-linear and time-dependent problems. 380 pp. 94
Nils-Erik Wiberg
Rapport
1994
Free Vibration of Reissner-Mindlin Plates Using a Linked Interpolated Mixed Element
Nils-Erik Wiberg, Romaldas Bausys, Ling Fu Zeng
Computers and Structures. Vol. 52 (5), p. pp. 979-986
Artikel i vetenskaplig tidskrift
1994
A postprocessed error estimate and an adaptive procedure for the semidiscrete finite element method in dynamic analyses
Nils-Erik Wiberg, Xiangdong Li
Rapport
1994
Free Vibration of Reissner-Mindlin Plates Using a Linked Interpolated Mixed Element
Nils-Erik Wiberg, Romualdas Bausys, Ling Fu Zeng
Computers and Structures. Vol. 52 (5), p. 979-986
Artikel i vetenskaplig tidskrift
1994
Superconvergent Patch Recovery of Finite Element Solution and a Posteriori L2 Norm Error Estimate
Nils-Erik Wiberg, Xiangdong Li
Communication in Numerical Methods in Engineering. Vol. 10, p. 313-320
Artikel i vetenskaplig tidskrift
1994
Enhanced Superconvergent Patch Recovery incorporating equilibrium and boundary conditions
Nils-Erik Wiberg, Fethi Abdulwahab, Saulius Ziukas
International Journal of Numerical Methods in Engineering. Vol. 37, p. pp. 3417-3440
Artikel i vetenskaplig tidskrift
1993
A Posteriori Local Error Estimation and Adaptive Time-stepping for Newmark Integration in Dynamic Analysis
Ling Fu Zeng, Nils-Erik Wiberg, Xiangdong Li et al
International Journal for Numerical Methods in Engineering. Vol. 21, p. 551-571
Artikel i vetenskaplig tidskrift
1993
Path Recovery based on Superconvergent Derivatives and Equilibrium
Nils-Erik Wiberg, Fethi Abdulwahab
International Journal for Numerical Methods in Engineering. Vol. 36, p. pp. 2703-2724
Artikel i vetenskaplig tidskrift
1993
Improved patch stress recovery procedure by equilibrium and boundary conditions
Nils-Erik Wiberg, Abdulwahab Fethi, Saulius Ziukas
Rapport
1993
A Simple Local Error Estimator and an Adaptive Time-stepping Procedure for Direct Integration Method in Dynamic Analysis
Xiangdong Li, Ling Fu Zeng, Nils-Erik Wiberg
Communications in Numerical Methods in Engineering. Vol. 9, p. 273-292
Artikel i vetenskaplig tidskrift
1993
A Posteriori Local Error Estimation and Adaptive Time-stepping for Newmark Integration in Dynamic Analysis
Ling Fu Zeng, Nils-Erik Wiberg, Xiangdong Li et al
Earthquake Engineering and Structural Dynamics. Vol. 21, p. pp. 555-571
Artikel i vetenskaplig tidskrift
1993
A Simple Local Error Estimator and an Adaptive Time-stepping Procedure for Direct Integration Method in Dynamic Analysis
Xiangdong Li, Ling Fu Zeng, Nils-Erik Wiberg
Communications in Numerical Methods in Engineering. Vol. 9, p. pp. 273-292
Artikel i vetenskaplig tidskrift
1993
The Effectivity of the Zienkiewicz-Zhu Error Estimate and two 2D Adaptive Mesh Generators
Alf Samuelsson, Nils-Erik Wiberg, Ling Fu Zeng
Communications in Numerical Methods in Engineering. Vol. 9, p. 687-699
Artikel i vetenskaplig tidskrift
1993
A posteriori error estimate by element patch post-processing, adaptive analysis in energy and L2 norms
Xiangdong Li, Nils-Erik Wiberg
Rapport
1993
Error Estimation and Adaptivity in Elastodynamics
Nils-Erik Wiberg, Ling Fu Zeng, Xiangdong Li
Computer Methods in Applied Mechanics and Engineering. Vol. 101, p. 369-395
Artikel i vetenskaplig tidskrift
1993
Superconvergent patch recovery of finite element solution and a posteriori L2 norm error estimate
Nils-Erik Wiberg, Xiangdong Li
Rapport
1993
Error Estimation and Adaptivity in Elastodynamics
Nils-Erik Wiberg, Ling Fu Zeng, Xiangdong Li
Computer Methods in Applied Mechanics and Engineering. Vol. 101, p. pp. 369-395
Artikel i vetenskaplig tidskrift
1993
Enhanced Superconvergent Patch Recovery Incorporating Equilibrium and Boundary Conditions
Nils-Erik Wiberg, Fethi Abdulwahab, Saulius Ziukas
Rapport
1993
A Post-Processing Technique and an a Posteriori Error Estimate for the Newmark Method in Dynamic Analysis
Nils-Erik Wiberg, Xiangdong Li
Earthquake Engineering and Structural Dynamics. Vol. 22, p. 465-489
Artikel i vetenskaplig tidskrift
1993
The Effectivity of the Zienkiewicz-Zhu Error Estimate and two 2D Adaptive Mesh Generators
Alf Samuelsson, Nils-Erik Wiberg, Ling Fu Zeng
Communications in Numerical Methods in Engineering. Vol. 9, p. pp. 687-699
Artikel i vetenskaplig tidskrift
1993
FEM-93 A seminar on Error Estimation and Adaptivity in Computational Mechanics 232 pp. 93
Nils-Erik Wiberg
Rapport
1993
A Post-Processing Technique and an a Posteriori Error Estimate for the Newmark Method in Dynamic Analysis
Nils-Erik Wiberg, Xiangdong Li
Earthquake Engineering and Structural Dynamics. Vol. 22, p. pp. 465-489
Artikel i vetenskaplig tidskrift
1993
Path Recovery based on Superconvergent Derivatives and Equilibrium
Nils-Erik Wiberg, Abdulwahab Fethi
International Journal for Numerical Methods in Engineering. Vol. 36, p. 2703-2724
Artikel i vetenskaplig tidskrift
1993
Free Vibration of Reissner-Mindlin Plates Using a Linked Interpolated Mixed Element
Nils-Erik Wiberg, Romualdas Bausys, Ling Fu Zeng
Rapport
1992
An adaptive finite element procedure for 2D dynamic transient analysis using direct integration
Ling Fu Zeng, Nils-Erik Wiberg, Lars Bernspång
International Journal for Numerical Methods in Engineering. Vol. 34, p. 997-1014
Artikel i vetenskaplig tidskrift
1992
Spatial mesh adaptation and semidiscrete finite element analysis of linear elastodynamic problems
Ling Fu Zeng, Nils-Erik Wiberg
Computational Mechanics. Vol. 9, p. pp. 315-332
Artikel i vetenskaplig tidskrift
1992
A post-processing technique and an a posteriori error estimate for the semidiscrete finite element method in structural dynamics
Nils-Erik Wiberg, Xiangdong Li, Abdulwahab Fethi
Rapport
1992
An adaptive finite element procedure for 2D dynamic transient analysis using direct integration
Ling Fu Zeng, Nils-Erik Wiberg, Lars Bernspång
International Journal for Numerical Methods in Engineering. Vol. 34, p. pp. 997-1014
Artikel i vetenskaplig tidskrift
1992
Spatial mesh adaptation and semidiscrete finite element analysis of linear elastodynamic problems
Ling Fu Zeng, Nils-Erik Wiberg
Computational Mechanics. Vol. 9,, p. 315-332
Artikel i vetenskaplig tidskrift
1992
Adaptive h-p procedures for high accuracy finite element analysis of two dimensional linear elastic problems
Ling Fu Zeng, Nils-Erik Wiberg
Computers & Structures. Vol. 42, p. 869-886
Artikel i vetenskaplig tidskrift
1992
An Efficient Postprocessing Technique for Stress Problems Based on Superconvergent Derivatives and Equilibrium
Nils-Erik Wiberg, Abdulwahab Fethi
Numerical Methods in Engineering, p. 8-
Artikel i vetenskaplig tidskrift
1992
A Posteriori Local Error Estimation and Adaptive Time-Stepping for Newmark Integration in Dynamic analysis
Ling Fu Zeng, Nils-Erik Wiberg, Xiangdong Li et al
Earthquake Engineering and Structural Dynamics. Vol. 21, p. 555-571
Artikel i vetenskaplig tidskrift
1992
Earthquake response analysis of a concrete dam by adaptive time-stepping algorithm
Nils-Erik Wiberg, Xiangdong Li
International Symposium on Application of Computer Methods in Rock Mechanics and Engineering, Xian, May 24-28, 1993, p. 7-
Paper i proceeding
1992
Adaptive h-p procedures for high accuracy finite element analysis of two dimensional linear elastic problems
Ling Fu Zeng, Nils-Erik Wiberg
Computers and Structures. Vol. 42, p. pp. 869-886
Artikel i vetenskaplig tidskrift
1992
A posteriori error estimation based on superconvergent derivatives and equilibrium
Nils-Erik Wiberg, Abdulwahab Fethi
Rapport
1992
An efficient postprocessing technique for stress problems based on superconvergent derivatives and equilibrium
Nils-Erik Wiberg, Abdulwahab Fethi
First European Conference on Numerical Methods in Engineering, Brussels, 9-11 sept 1992, p. 8-
Paper i proceeding
1992
A post-processing technique and an a posteriori error estimate for the Newmark method in dynamic analysis
Nils-Erik Wiberg, Xiangdong Li
Rapport
1992
Patch recovery based on superconvergent derivatives and equilibrium,
Nils-Erik Wiberg, Abdulwahab Fehti
Workshop on Adaptive Methods, Trondheim June 1992, p. 29-
Paper i proceeding
1992
A Posteriori Local Error Estimation and Adaptive Time-Stepping for Newmark Integration in Dynamic analysis
Ling Fu Zeng, Nils-Erik Wiberg, Xiangdong Li et al
Earthquake Engineering and Structural Dynamics. Vol. 21, p. 555-571
Artikel i vetenskaplig tidskrift
1992
A note on the effectivity of the Zienkiewicz-Zhu error estimate and two 2D adaptive mesh generators
Alf Samuelsson, Nils-Erik Wiberg, Ling Fu Zeng
Rapport
1992
An Efficient Postprocessing Technique for Stress Problems Based on Superconvergent Derivatives and Equilibrium
Nils-Erik Wiberg, Fethi Abdulwahab
Numerical Methods in Engineering '92, Proceedings of the First European Conference, Brussels, Belgium, 7-11 September 1992, p. 8 pp-
Paper i proceeding
1991
A Posteriori Local Error Estimation and Adaptive Time-Stepping for Newmark Integration in Dynamic analysis
Ling Fu Zeng, Nils-Erik Wiberg, Xiangdong Li et al
Rapport
1991
A recursive finite element scheme for point singularities in elliptic problems
Nils-Erik Wiberg, Harald Tägnfors, Fethi Abdulwahab
STRUCTENG91, Paris, October 10-11, 1991, p. 6-
Paper i proceeding
1991
Error Estimation and Adaptivity of Spatial Discretization in Semidiscrete Finite Element Analysis for Dynamic Problems
Ling Fu Zeng, Nils-Erik Wiberg
Rapport
1991
Time integration of convection-diffusion problems by hierarchical functions
Peter Möller, Nils-Erik Wiberg
First Baltic Heat Transfer Conference, Göteborg, August 26-30, 1991, p. 15-
Paper i proceeding
1991
A new local error estimator and adaptive time-stepping procedure for direct integration methods in dynamic analysis
Xiangdong Li, Ling Fu Zeng, Nils-Erik Wiberg
Rapport
1991
Finite element adaptivity in dynamics and elastoplasticity.
Alf Samuelsson, Nils-Erik Wiberg
The finite element method in the 1990's, p. 11 pp. -
Artikel i vetenskaplig tidskrift
1991
Verksamheten vid byggnadsmekanik CTH
Nils-Erik Wiberg, Alf Samuelsson, Kenneth Runesson
Rapport
1991
Finite element adaptivity in dynamics and elastoplasticity
Alf Samuelsson, Nils-Erik Wiberg
The finite element method in the 1990's, p. 11-
Kapitel i bok
1991
Adaptive FE-procedures in Elastomechanics
Nils-Erik Wiberg, Ling Fu Zeng
IV-ICCCBE, Tokyo, Japan, July 29-31, 1991, p. 4-
Paper i proceeding
1991
Finite element adaptivity in dynamicsand elastoplasticity.
Alf Samuelsson, Nils-Erik Wiberg
Kapitel i bok
1991
Error estimation and adaptivity in elastodynamics, Second Workshop on Reliability and Adaptive Methods in Computational Mechanics
Nils-Erik Wiberg, Ling Fu Zeng, Xiangdong Li
Second Workshop on Reliability and Adaptive Methods in Computational Mechanics, Cracow, October 14-16, p. 27 -
Paper i proceeding
1990
Time Integration of Non-linear Convection-Conduction Problems
Nils-Erik Wiberg, Jan Frykestig
First International Conference on Advanced Computational Heat Transfer, HEAT TRANSFER 90, Portsmouth, U.K., July 17-20, 1990
Paper i proceeding
1990
On the Adaptive Analysis for Elastodynamic Problems Using Semidiscrete Finite Elements
Ling Fu Zeng, Nils-Erik Wiberg
International Conference on Computational Engineering Science, ICES' 91, April 21-25, 1991, Patras, Greece, p. 5-
Paper i proceeding
1990
An Adaptive Finite Element Procedure for 2D Dynamic Transient Analysis Using Direct Integration
Ling Fu Zeng, Nils-Erik Wiberg, Lars Bernspång
Rapport
1990
Two-dimensional mesh generation, adaptive remeshing and refinement
Hao Jin, Nils-Erik Wiberg
International Journal for Numerical Methods in Engineering. Vol. 29, p. 1501-1526
Artikel i vetenskaplig tidskrift
1990
FEM-90 : Adaptive Finite Elements - A seminar on how to find reliable FE-solutions in an efficient way
Nils-Erik Wiberg
Rapport
1990
An explicit FE-algorithm for compressible flow with adaptive shock capturing
Jan Frykestig, Nils-Erik Wiberg
Rapport
1990
Finite Element Analysis of Progressive Failure in Long Slopes
Nils-Erik Wiberg, Matti Koponen, Kenneth Runesson
International Journal for Numerical and Analytical Methods in Geomechanics. Vol. 14, p. 599-612
Artikel i vetenskaplig tidskrift
1990
Finite Element Analysis of Progressive Failure in Long Slopes
Nils-Erik Wiberg, Matti Koponen, Kenneth Runesson
International Journal for Numerical and Analytical Methods in Geomechanics. Vol. 115, p. pp. 599-612
Artikel i vetenskaplig tidskrift
1990
Adaptive Procedures of h-p Version for High Accuracy Finite Element Analysis in 2D Linear Elastic Problems
Ling Fu Zeng, Nils-Erik Wiberg
Rapport
1990
Two-dimensional mesh generation, adaptive remeshing and refinement
Hao Jin, Nils-Erik Wiberg
International Journal for Numerical Methods in Engineering. Vol. 8, p. pp. 1501-1526
Artikel i vetenskaplig tidskrift
1990
An adaptive FE-analysis procedures of h-p version for 2D elastic stress problems
Ling Fu Zeng, Nils-Erik Wiberg
International conference on structural engineering and computation, Beijing, April 25-28, 1990, p. 11-
Paper i proceeding
1989
Numerical methods in structural dynamics. Adaptive FE-procedures
Nils-Erik Wiberg, Lingfu Zheng, Harald Tägnfors
Building Journal. Vol. 37 (9), p. 697-701
Artikel i vetenskaplig tidskrift
1989
Mesh generation and mesh refinement procedures for computational plasticity
Hao Jin, Lars Bernspång, Ragnar Larsson et al
Second international conference on computational plasticity-models, software and applications, COMPLAS II, Barcelona, Spain, 18th-22nd September 1989, p. 11-
Paper i proceeding
1989
Heat transfer and heat storage problems calculated by SITU-FLOW-H-V1
Jan Frykestig, Nils-Erik Wiberg
Rapport
1989
Adaptive FE-analysis procedure and error estimation for 2D elastic problems
Zeng Lingfu, Nils-Erik Wiberg
International conference on advances in numerical methods in engineering - Theory and applications, NUMETA 1990, Swansea UK, January 7-11, 1990, p. 10-
Paper i proceeding
1989
A generalized coordinate method for the analysis of 3D tall buildings
Lingfu Zheng, Nils-Erik Wiberg
Computers and Structures. Vol. 33 (6), p. pp. 1365-1377
Artikel i vetenskaplig tidskrift
1989
SLOPESTAB : A Computer Program for FE-analysis of progressive Failure in Long Slopes
Nils-Erik Wiberg, Matti Koponen, Kenneth Runesson
Rapport
1989
Time Integration of Non-linear Heat Storage Problems
Nils-Erik Wiberg, Jan Frykestig, Harald Tägnfors
6:th International Conference on Numerical Methods for Thermal Problems, Swansea UK, July 3-7, 1989, p. 11-
Paper i proceeding
1989
Numerical methods in structural dynamics. Adaptive FE-procedures
Nils-Erik Wiberg, Lingfu Zheng, Harald Tägnfors
Building Journal. Vol. 37 (9), p. pp. 697-701
Artikel i vetenskaplig tidskrift
1989
Datorberäkningar 89 - En seminariedag om utvecklingstendenser inför 90-talet
Nils-Erik Wiberg
Rapport
1989
A Computer Program for FE-analysis of Progressive Failure in Long Slopes
Nils-Erik Wiberg, Matti Koponen, Kenneth Runesson
Rapport
1989
A generalized coordinate method for the analysis of 3D tall buildings
Lingfu Zheng, Nils-Erik Wiberg
Computers & Structures. Vol. 37 (9), p. 697-701
Artikel i vetenskaplig tidskrift
1989
On adaptive calculation of Kirchhoff plates with mixed method
Michal Saran, Alf Samuelsson, Nils-Erik Wiberg
The ICES conference in Atlanta, April 1988, p. 8-
Paper i proceeding
1989
Numerical Methods in Structural Dynamics Adaptive FE-procedures
Nils-Erik Wiberg, Ling Fu Zeng, Harald Tägnfors
International Conference on Dynamics of Building Structures 89, Karlovy Varg, Tjeckoslovakien, Sept. 11-15, 1989, p. 11-
Paper i proceeding
1989
FEM-beräkning av värmelager jämförande studier och seminarium
Jan Frykestig, Nils-Erik Wiberg
Rapport
1989
Two-Dimensional Mesh Generation, Adaptive Remeshing and Refinement
Hao Jin, Nils-Erik Wiberg
Rapport
1989
Data management in finite element programs
Harald Tägnfors, Nils-Erik Wiberg
International scientific conference on the newest scientific research problems of the building and environment engineering, Bialystok, Polen, May 22-24, 1989, p. 8-
Paper i proceeding
1988
FE-calculation of progressive failure in long clay slopes
Nils-Erik Wiberg, Matti Koponen, Kenneth Runesson
X Nordiske Geoteknikermöte, NGM 88, Oslo, May 13-15, 1988, p. 5-
Paper i proceeding
1988
Stress analysis and heat transfer using finite element program - students computer lab
Michal Saran, Alf Samuelsson, Nils-Erik Wiberg
Rapport
1988
Stability of elastic plane frames including soil-structure interaction
Ragnar Larsson, Nils-Erik Wiberg
Computers and Structures. Vol. 29 (5), p. 845-858
Artikel i vetenskaplig tidskrift
1988
Boundary element analysis for dynamic response of vibrating foundation
Xi-Reng Zhou, Nils-Erik Wiberg
Acta Mechanica Solida Sinica. Vol. 1 (2), p. pp. 159-168
Artikel i vetenskaplig tidskrift
1988
Boundary element analysis for dynamic response of vibrating foundation
Xi-Reng Zhou, Nils-Erik Wiberg
Acta Mechanica Solida Sinica. Vol. 1 (2), p. 159-168
Artikel i vetenskaplig tidskrift
1988
Adaptive and hierarchical weighted residual and least squares time integration of convection diffusion problems
Nils-Erik Wiberg
Comm. in Appl. Num. Meth.. Vol. 4, p. pp. 499-507
Artikel i vetenskaplig tidskrift
1988
A generalized Coordinate Method for the analysis of 3D tall buildings
Ling Fu Zeng, Nils-Erik Wiberg
Rapport
1988
Adaptive and hierarchical weighted residual and least squares time integration of convection diffusion problems
Nils-Erik Wiberg
Comm. in Appl. Num. Meth.. Vol. 4, p. 499-507
Artikel i vetenskaplig tidskrift
1988
Stability of elastic plane frames including soil-structure interaction
Ragnar Larsson, Nils-Erik Wiberg
Computers and Structures. Vol. 29 (5), p. pp. 845-858
Artikel i vetenskaplig tidskrift
1988
Formulation and solution of hierarchical finite element Equations
Nils-Erik Wiberg, Peter Möller
International Journal of Numerical Methods in Engineering. Vol. 26, p. pp. 1213-1233
Artikel i vetenskaplig tidskrift
1988
Formulation and solution of hierarchical finite element Equations
Nils-Erik Wiberg, Peter Möller
International Journal of Numerical Methods in Engineering. Vol. 26, p. 1213-1233
Artikel i vetenskaplig tidskrift
1988
SITU-FRAME-E2-V1 - A Computer Program for second order analysis of plane frames with static loads : Theory and verification problems
Ragnar Larsson, Nils-Erik Wiberg, Kenneth Runesson et al
Rapport
1987
SITU General Manual for a Programming System which is SImple To Use
Harald Tägnfors, Kenneth Runesson, Nils-Erik Wiberg
Rapport
1987
PRIVEC A tool for the management of arrays in a hierarchic data structure in primary memory
Harald Tägnfors, Kenneth Runesson, Nils-Erik Wiberg
Rapport
1987
On exact and hierarchical finite elements for frame structures
Ragnar Larsson, Nils-Erik Wiberg
The International Conference on Numerical Methods in Engineering (NUMETA 87), Swansea, July 6-10, 1987, p. 9-
Paper i proceeding
1987
On exact and hierarchical finite elements for frame structures
Ragnar Larsson, Nils-Erik Wiberg
Rapport
1987
Stability of plane frames including soil structure interaction
Ragnar Larsson, Nils-Erik Wiberg
Rapport
1987
Least-squares schemes for time integration of thermal problems
Jerzy Kujawski, Nils-Erik Wiberg
International Journal for Numerical Methods in Engineering,. Vol. 24 (l7), p. l59-l75
Artikel i vetenskaplig tidskrift
1987
SITU - FLOW - G A computer program for the finite element analysis of two-dimensional groundwater flow : User's Manual
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
Rapport
1987
SITU-FLOW-G-V1 A Computer Program for the Finite Element Analysis of Two-Dimensional Ground Water Flow Theory and Verification Problem
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
Rapport
1987
Stability of Elastic Plane Frame Including Soil-structure Interaction
Ragnar Larsson, Nils-Erik Wiberg
Computers & Structures. Vol. 29, p. 845-855
Artikel i vetenskaplig tidskrift
1987
SITU-FRAME-E2-V1 - A Computer Program for second order analysis of plane frames with static loads
Ragnar Larsson, Nils-Erik Wiberg, Kenneth Runesson et al
Rapport
1987
An adaptive procedure for eigenvalue problems using the hierarchical finite element method
Olof Friberg, Peter Möller, Daniel Makovicka et al
International Journal for Numerical Methods in Engineering. Vol. 24, p. pp. 319-335
Artikel i vetenskaplig tidskrift
1987
An adaptive procedure for eigenvalue problems using the hierarchical finite element method
Olof Friberg, Peter Möller, Daniel Makovicka et al
International Journal for Numerical Methods in Engineering. Vol. 24 (2), p. 319-335
Artikel i vetenskaplig tidskrift
1987
On the practical use of standard and higher order patchtests for plate bending problems
Alf Samuelsson, Svante Rydholm, Nils-Erik Wiberg
1:st Conference on Reliability and Robustness of Engineering Software, Como, Italy, Sept 1987, p. 343-352
Paper i proceeding
1987
Elastic-plastic pile-frame interaction
Ragnar Larsson, Nils-Erik Wiberg
The 6:th International Conference on Numerical Methods in Geomechanics (ICONMIG 88), Innsbruck, April 11-15, 1988, p. 8-
Paper i proceeding
1987
Vibration of thick plates on three dimensional multilayered soil
Jerzy Kujawski, Czeslaw Miedzialowski, Nils-Erik Wiberg
The 6:th International Conference on Numerical Methods in Geomechanics (ICONMIG 88), Innsbruck, April 11-15, 1988, p. 7-
Paper i proceeding
1987
Adaptive and hierarchical time integration of convection-diffusion problems
Nils-Erik Wiberg, Jan Frykestig
Conference on the Mathematics of Finite Elements and Applications (MAFELAP 87), Brunel April 1987, p. 8-
Paper i proceeding
1986
SITU-HEAT-V1, A computer program for the finite element analysis of two-dimensional heat flow. User's Manual
Peter F G Hansbo, Kenneth Runesson, Harald Tägnfors et al
Rapport
1986
Adaptive computer methods in structural mechanics
Nils-Erik Wiberg, Alf Samuelsson, Kenneth Runesson
Rapport
1986
A study of the efficiency of iterative methods for linear problems in structural mechanics
Alf Samuelsson, Nils-Erik Wiberg, Lars Bernspång
International Journal for Numerical Methods in Engineering. Vol. 22, p. pp. 209-218.
Artikel i vetenskaplig tidskrift
1986
Formulation and solution of hierarchical finite element equations
Nils-Erik Wiberg, Peter Möller
Rapport
1986
Influence of a wall system on the interaction between soil and foundation plates
Jerzy Kujawski, Nils-Erik Wiberg
International Journal for Numerical and Analytical Methods in Geomechanics. Vol. 10, p. pp. 283-309.
Artikel i vetenskaplig tidskrift
1986
A study of the efficiency of iterative methods for linear problems in structural mechanics
Alf Samuelsson, Nils-Erik Wiberg, Lars Bernspång
International Journal for Numerical Methods in Engineering. Vol. 10, p. 283-309
Artikel i vetenskaplig tidskrift
1986
SITU-HEAT-V1 - A computer program for the finite element analysis of two-dimensional stationary heat conduction in solids. Theory and Verification Problems
Peter F G Hansbo, Kenneth Runesson, Harald Tägnfors et al
Rapport
1986
Datorstödd konstruktion - samordning och intensifiering av CAD-verksamhetn vid CTH
Harald Tägnfors, Nils-Erik Wiberg
Rapport
1986
A semi-analytical FE-model for 3D elastic-viscoplastic soil foundation
Jerzy Kujawski, Nils-Erik Wiberg, Miroslaw Olejnik
The Second International Conference on numerical Methods in Geomechanics (NUMOG II) Ghent, Belgium, March 31- April 4, 1986, p. 761-768
Paper i proceeding
1986
Influence of a wall system on the interaction between soil and foundation plates
Jerzy Kujawski, Nils-Erik Wiberg
International Journal for Numerical and Analytical Methods in Geomechanics. Vol. 10, p. 283-309
Artikel i vetenskaplig tidskrift
1986
Dynamic soil structure interaction problem including viscous damping
Zhou Xi-Reng, Nils-Erik Wiberg, Odd Tullberg
The International Conference on Boundary Elements, Beijing, Oct 14-17, 1986, p. 14-
Paper i proceeding
1986
Adaptive and hierarchical analysis of eigenvalue problems
Olof Friberg, Nils-Erik Wiberg
The International Conference on Computational Mechanics (ICCM86- Tokyo) May 25-29, pp. VI-163 - VI-170, 1986
Paper i proceeding
1986
SITU-FLOW-G - A computer program for groundwater flow which is simple to use
Harald Tägnfors, Kenneth Runesson, Nils-Erik Wiberg
The VI International Conference on Finite Element in Water Resources, Lisbon, June 1-5, 1986, p. 271-280
Konferensbidrag (offentliggjort, men ej förlagsutgivet)
1986
Boundary element solution for dynamic soil-structure interaction
Odd Tullberg, Zhou Xi-Reng, Nils-Erik Wiberg
The Second International Conference on Numerical Models in Geomechanics (NUMOG II), Ghent, Belgium, March 31- April 4, 1986, p. 799-806
Paper i proceeding
1986
Adaptive and hierarchical weighted residual and least squares time integration of convection-diffusion problems
Nils-Erik Wiberg
Rapport
1985
The efficiency of partially penetrating vertical drains
Kenneth Runesson, Sven Hansbo, Nils-Erik Wiberg
Geotechnique. Vol. 35 (4), p. pp. 511-516.
Artikel i vetenskaplig tidskrift
1985
SITU - STRESS - E a computer program for the finite element analysis of two-dimensional elastic or thermo elastic solids
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg et al
Rapport
1985
The efficiency of partially penetrating vertical drains
Kenneth Runesson, Sven Hansbo, Nils-Erik Wiberg
Geotechnique. Vol. XXXV (4), p. 511-516
Artikel i vetenskaplig tidskrift
1985
Application of Laplace transform to solution of structural vibration problems
Zhou Xi-Reng, Nils-Erik Wiberg
Rapport
1985
High order time integration of thermal problems
Jerzy Kujawski, Nils-Erik Wiberg, Peter F G Hansbo
Fifth International Conference on Numerical Methods in Thermal Problems, Swansea, July 1985, p. 15-
Paper i proceeding
1985
CHALMFEM - A package of computer programs for FEM-analysis of Engineering Proble
Nils-Erik Wiberg
The 4th International Seminar on Finite Element Systems, Southampton, England, July 6-8, 1983
Paper i proceeding
1985
A subroutine library for establishment and solution of linear equation systems
Harald Tägnfors, Nils-Erik Wiberg, Lars Bernspång
Fourth International Conference and Exhibition on Engineering Software, Kensington Exhibition Centre, London, June 1985, p. 12-
Paper i proceeding
1985
An adaptive procedure for eigenvalue problems using the hierarchical finite element method
Olof Friberg, Peter Möller, D. Makovicka et al
Rapport
1984
Use of trigonometric functions for hierarchical improvement of finite element solutions of 2D-static elastic problems
Nils-Erik Wiberg, Peter Möller, Alf Samuelsson
International Conference on Advances in Numerical Methods in Engineering: Theory and Applications (NUMETA 85), Swansea 1985, p. 10-
Paper i proceeding
1984
A higher order time finite element family of schemes for time integration of linear and nonlinear transient field problems
Jerzy Kujawski, Nils-Erik Wiberg
Rapport
1984
On the behaviour of natural slopes with emphasis on progressive failure
Peter F G Hansbo, Ragnar Larsson, Kenneth Runesson et al
The 11th International Conference on Soil Mechanics and Foundation Engineering, San Fransisco 1985, p. 4-
Paper i proceeding
1984
On the improvement of the numerical accuracy of FEM-solutions
Nils-Erik Wiberg, Alf Samuelsson, Lars Bernspång
The 5th Conference on The Mathematics of Finite Elements Applications, London 1984, p. 4-
Paper i proceeding
1984
The efficiency of non-penetrating vertical drains
Kenneth Runesson, Sven Hansbo, Nils-Erik Wiberg
Rapport
1984
A study of the hierarchical p-version of the finite element method for static problems
Nils-Erik Wiberg, Peter Möller, Alf Samuelsson
Proceedings of the International Conference on Accuracy Estimates and Adaptive Refinements in Finite Element Computations, Lisbon 1984, p. 61-71
Paper i proceeding
1984
An unconditionally stable least-squares family of schemes for time integration of first order nonlinear initial value problems
Jerzy Kujawski, Nils-Erik Wiberg
Rapport
1984
Stability analysis of natural slopes in clay by use of the finite element method
Kenneth Runesson, Nils-Erik Wiberg
Rapport
1984
Stability and progressive failure of natural slopes - A simple approach
Peter F G Hansbo, Kenneth Runesson, Nils-Erik Wiberg
International Conference on Numerical Methods in Geomechanics, Nagoya 1985, p. 7-
Paper i proceeding
1984
Boundary element so lutions for some problems in soil dynamics
Odd Tullberg, Nils-Erik Wiberg
The 5th International Conference on Numerical Methods in Geomechanics, Nagoya, Japan 1985, p. 8-
Paper i proceeding
1983
Finite element analysis of geothermal problems. Present status and need for development
Owe Andersson, Nils-Erik Wiberg
Rapport
1983
Heat storage in aquifers analyzed by the finite element method
Nils-Erik Wiberg
Ground Water. Vol. 21 (2), p. pp. 178-187.
Artikel i vetenskaplig tidskrift
1983
Influence of a wall system for interaction between soil and foundation plates
Jerzy Kujawski, Nils-Erik Wiberg
Rapport
1983
Heat storage in aquifers analyzed by the finite element method
Nils-Erik Wiberg
Ground Water. Vol. 21 (2), p. 178-187
Artikel i vetenskaplig tidskrift
1983
SBALK2 - Datorprogram för dimensionering av sadelbalkar i förspänd betong enligt BBK 79
Krister Cedervall, Harald Tägnfors, Nils-Erik Wiberg
Rapport
1982
Thick plates on multilayered soil. A semianalytical 3D FEM-solution
Jerzy Kujawski, Nils-Erik Wiberg
International Symposium on Numerical Methods in Geomechanics, Zürich, 13-17 september 1982, p. pp 693-702
Paper i proceeding
1982
Finite element analysis of geothermal heat storage problems
Nils-Erik Wiberg
Artikel i vetenskaplig tidskrift
1982
Soil structure interaction in plane frame stability analysis
Nils-Erik Wiberg
Proc. of the Fourth International Conference on Numerical Methods in Geomechanics, Edmonton, Canada, June 1982
Paper i proceeding
1982
Computer methods for engineering calculations
Nils-Erik Wiberg
SEAS, proceedings, Anniversary Meeting, Stenungsund, 27 sep - 1 okt 1982
Paper i proceeding
1982
SITU-PLASO, Computer program for three dimensional analysis of multilayered soil and soil-thick plates interaction by use of a semianalytical finite element method. Theory and user's manual
Jerzy Kujawski, Harald Tägnfors, Nils-Erik Wiberg
Rapport
1981
Features facilitating the development of the program package SITU for computer aided design purposes
Harald Tägnfors, Kenneth Runesson, Nils-Erik Wiberg
MAFELAP 1981. The Mathematics of Finite Elements and Applications / edited by Whiteman, p. 534-535
Kapitel i bok
1981
On the behaviour of natural slopes in clay
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
Tenth International Conference on Soil Mechanics and Foundation Engineering, June 15-19, 1981, Stockholm, Sweden.
Paper i proceeding
1981
Ground water heat pump problems analyzed by the finite element method
Nils-Erik Wiberg
Proc., International Ground Water Geothermal Heat Pump Conference III, Columbus, Ohio 1981.
Paper i proceeding
1981
Design and generation of programs for interactive PRE-FEM-POST processing
Harald Tägnfors, Kenneth Runesson, Nils-Erik Wiberg
Kapitel i bok
1981
Orientering om finita elementmetodens praktiska användning
Nils-Erik Wiberg
Samlingsverk (redaktörskap)
1981
IHALL2, Datorprogram för snittkraftsberäkning och dimensionering enligt BBK 79 av prefabricerade industrihallar i betong
Nils-Erik Wiberg
Rapport
1981
Prediction of groundwater pressure changes and consequent settlements using the finite element method
Kenneth Runesson, Nils-Erik Wiberg
Rapport
1981
PRISEC - A tool for the data management in FORTRAN-programs
Harald Tägnfors, Kenneth Runesson, Nils-Erik Wiberg
Second International Conference and Exhibition on Engineering Software, March 24-26th, 1981, London, England.
Paper i proceeding
1981
Aspects on the solution of large scale structures
Nils-Erik Wiberg, Alf Samuelsson
European Simulation Meeting, Capri, Italien, Augusti 1981
Paper i proceeding
1981
Seepage interaction in sand and clay
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
Tenth International Conference on Soil Mechanics and Foundation Engineering, June 15-19, 1981, Stockholm, Sweden.
Paper i proceeding
1980
Interaction problems in soil structure mechanics with material nonlinearity
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
International Journal Computers and Structures. Vol. 12, p. 581-592
Artikel i vetenskaplig tidskrift
1980
Energy storage in soil, A finite element approach to a transient energy transport problem
Nils-Erik Wiberg
Rapport
1980
PRISEC-VERSION 1, A tool for the data management in FORTRAN-programs
Harald Tägnfors, Kenneth Runesson, Nils-Erik Wiberg
Rapport
1980
Finita elementmetodens tillämpningar inom olika teknikområden
Nils-Erik Wiberg
Samlingsverk (redaktörskap)
1980
GEOFEM-C, A computer program for the finite element analysis of plane or axisymmetric consolidation of elastic-plastic clay
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
Rapport
1980
Vridning, välvning och kantring av kontinuerliga balkar och balkroster
Nils-Erik Wiberg
Rapport
1979
Groundwater hydrology problems with emphasis on approximate computer solutions
Kenneth Runesson, Nils-Erik Wiberg
Rapport
1979
Interaction problems in soil-structure mechanics with material nonlinearity
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
International Conference on Engineering Application of the Finite Element Method, Høvik, Norway, May 9-11th 1979,, p. pp 1.1-21.30
Paper i proceeding
1979
Energy transport and storage in earth analyzed by the finite element method
Owe Andersson, Kenneth Runesson, Nils-Erik Wiberg
Nordic Symposium on Earth Heat Pump Systems, Gothenburg 1979, p. 226-235
Paper i proceeding
1979
GEOFEM-G, Computer program for ground water seepage including confined aquifer analysis
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
Rapport
1979
CHALMFEM - ett effektivt beräkningshjälpmedel för byggsektorn
Lars Bolteus, Nils-Erik Wiberg
Byggmästaren (1-2), p. 25-27
Artikel i övriga tidskrifter
1978
Some geomechanical and geohydrological problems analyzed by the finite element method
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
FoU bygg. Vol. 1, p. 1-3
Artikel i övriga tidskrifter
1978
Finite element analysis of ground water flow and settlements in aquifers confined by clay
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
Finite Elements in Water Resources (red: A. Brebbia, W.G. Grey and G.F. Pinder). Pentech Press, London, 1978, pp, p. 1249-1268
Kapitel i bok
1978
Aspects on input and output for finite element programs
Harald Tägnfors, Nils-Erik Wiberg
IABSE, Colloquium on: Interface between computing and design in structural engineering, ISMES-BERGAMO, Italy, August 30, 31 - September 1, 1978, p. 123-132.
Paper i proceeding
1978
A new Rosenbrock-type method applied to a finite element discretized nonlinear diffusion-convection equation
Kenneth Runesson, Nils-Erik Wiberg, Arne Wolfbrandt
MAFELAP III, Brunel 1978
Paper i proceeding
1978
Finite Elements in Nonlinear Mechanics
Pål Bergan, Per Larsen, Hans Petersson et al
Samlingsverk (redaktörskap)
1977
EPAFEM, A computer program for analysis of plane or axi-symmetric structures of thermo-elastic or elastic-plastic material
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
Rapport
1977
Några geotekniska och geohydrologiska problem analyserade med finit elementmetod
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
Rapport
1977
Computer implementation of non-linear finite element analysis applied to some geotechnical problems
Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg
International Conference on Finite Elements in Nonlinear Solid and Structural Mechanics, Geilo, Norway, August 29 - September 1, 1977, p. 24-
Paper i proceeding
1976
Finita elementmetoden i maskintekniken
Nils-Erik Wiberg
Industriell Teknik (11-12)
Artikel i övriga tidskrifter
1976
General solution routines for symmetric equation systems. The Mathematics of Finite Elements and Applications II
Nils-Erik Wiberg, Harald Tägnfors
Mafelap 1975, edited by J.R. Whiteman, p. 10-
Paper i proceeding
1976
Finita elementmetoden, några tillämpningar. Fortbildningskurs CTH 22-26, november, 1976
Nils-Erik Wiberg
Samlingsverk (redaktörskap)
1976
Dimensionering av spännarmerade betongelement med hjälp av dator
Krister Cedervall, Nils-Erik Wiberg
Nordisk Betong (2)
Artikel i övriga tidskrifter
1975
Finita elementmetodens tillämpning inom geomekanik
Kenneth Axelsson, Kenneth Runesson, Harald Tägnfors et al
Rapport
1975
Finite element method. The large sparse system of equations and its numerical solution : lecture given at the Symposium of Applied Mathematics held in Göteborg, April 2-4, 1975
Nils-Erik Wiberg
Rapport
1975
Finita elementmetoden, några tillämpningar. Fortbildningskurs CTH 20-24 oktober 1975
Nils-Erik Wiberg
Samlingsverk (redaktörskap)
1975
Finita elementmetoden, en datoranpassad beräkningsmetod för ingenjörsproblem
Nils-Erik Wiberg
Samlingsverk (redaktörskap)
1975
General solution routines for symmetric equation systems
Nils-Erik Wiberg, Harald Tägnfors
Rapport
1975
Finite element method, the large and sparse system of equations and its numerical solution
Nils-Erik Wiberg
Rapport
1974
EPARAM, Datorprogram för elastisk-plastisk analys av plan ram enligt 2:a ordningens teori med stabilitetskontroll
Harald Tägnfors, Nils-Erik Wiberg
Rapport
1974
Matrix structural analysis with mixed variables
Nils-Erik Wiberg
International Journal for Numerical Methods in Engineering. Vol. 8 (1), p. 167-194
Artikel i vetenskaplig tidskrift
1973
PRAM, Datorprogram för analys av plan ram enligt 1:a och 2:a ordningens teori
Harald Tägnfors, Nils-Erik Wiberg
Rapport
1973
SOLV, SOLVP, General solution routines for symmetric equation systems
Harald Tägnfors, Nils-Erik Wiberg
Rapport
1972
FEMWT - A General Purpose Computer Program for Solving Problems by Finite Element Methods
Nils-Erik Wiberg, Harald Tägnfors
Rapport
1971
Datorprogram för tredimensionell analys av höga byggnader
Harald Tägnfors, Nils-Erik Wiberg
Rapport
1970
System analysis in structural mechanics by use of mixed force and displacement variables
Nils-Erik Wiberg
Doktorsavhandling
1968
Exempelsamling i byggnadsstatik för V1,2:a uppl okt 1970, 3:e uppl nov 1971
Nils-Erik Wiberg
Rapport
1968
Exempelsamling i byggnadsstatik i anslutning till kompendiedelarna P-R samt flytledsteori, plattor och skal
Nils-Erik Wiberg
Rapport
1967
Diacoptics and Codiacoptics. Two dual mixed methods for analysing elastic structures
Nils-Erik Wiberg
Licentiatavhandling
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