Nils-Erik Wiberg

Professor emeritus vid Chalmers, Industri- och materialvetenskap, Material- och beräkningsmekanik

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

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

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

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

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

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

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

Adaptive FE-Simulations In 3D Using Multigrid Solver

Per Kettil, Torbjörn Ekevid, Nils-Erik Wiberg
WCCM VI in conjunction with APCOM’04, Beijing, China, Sept. 5-10, (2004)
Paper i proceeding
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

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

FEM-structures Lecture notes

Nils-Erik Wiberg
Kapitel i bok
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

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

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

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

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

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

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
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

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

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

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

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

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

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

Modern Konstruktionsteknik '02

Nils-Erik Wiberg, Harald Tägnfors
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

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
2002

Årsredogörelse Byggnadsmekanik Chalmers 2002

Kenneth Runesson, 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. pp. 161-176
Artikel i vetenskaplig tidskrift
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

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

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

Modern Konstruktionsteknik '01

Nils-Erik Wiberg, Nahidh Hamid Sharif
Rapport
2001

Towards Fully Mesh Adaptive FE-Simulations in 3D Using Multi-Grid Solver

Per Kettil, Torbjörn Ekevid, Nils-Erik Wiberg
Rapport
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

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

Årsredogörelse Byggnadsmekanik Chalmers 2001

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

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

Design in an IT-perspective

Nils-Erik Wiberg, Mike Conell, Harald Tägnfors et al
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

Postrocessing Techniques and h-Adaptive FE-Eigenproblem Analysis

Romualdas Bausys, Patrik Hager, Nils-Erik Wiberg
Rapport
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

Årsredogörelse Byggnadsmekanik Chalmers 2000

Nils-Erik Wiberg
Rapport
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

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

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

Design in an IT-perspective

Nils-Erik Wiberg, Harald Tägnfors, Per Kettil et al
Rapport
2000

3rd Seminar on Pavement Design and Road Mechanics

Nils-Erik Wiberg, Anders Huvstig
Rapport
2000

3rd Seminar on Pavement Design and Road Mechanics

Anders Huvstig, Nils-Erik Wiberg
Rapport
2000

Modern Konstruktionsteknik '00

Nils-Erik Wiberg, Nahidh Hamid Sharif
Rapport
2000

Årsredogörelse Byggnadsmekanik Chalmers 1999

Nils-Erik Wiberg
Rapport
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

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

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

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

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

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

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

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

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

Årsredogörelse Byggnadsmekanik CTH 1998

Nils-Erik Wiberg
Rapport
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

2nd Seminar on Pavement Design and Road Mechanics

Anders Huvstig, Nils-Erik Wiberg
Rapport
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

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

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

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

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

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 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

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

2nd Seminar on Pavement Design and Road Mechanics

Nils-Erik Wiberg, Anders Huvstig
Rapport
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

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

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

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

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

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

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
1999

Modern Konstruktionsteknik '99

Nils-Erik Wiberg, Nahidh Hamid Sharif
Rapport
1998

Adaptive Finite Element Procedures for Linear and Nonlinear Dynamics

Nils-Erik Wiberg, Xiangdong Li
Rapport
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

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

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

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

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

Finite Element Method - Basics

Alf Samuelsson, Nils-Erik Wiberg
Bok
1998

Årsredogörelse Byggnadsmekanik CTH 1997

Nils-Erik Wiberg
Rapport
1998

FEM-98, Applications in Structural Design,

Nils-Erik Wiberg, Ulrika Wendt
Rapport
1998

FEM-98. Applications in Structural Design

Nils-Erik Wiberg, Ulrika Wendt
Rapport
1998

Modern Konstruktionsteknik '98

Nils-Erik Wiberg, Ulrika Wendt
Rapport
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

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

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

Fem -97, Simulation and Optimization

Nils-Erik Wiberg, Ulrika Wendt
Rapport
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

Avancerad Konstruktionsteknik '97

Nils-Erik Wiberg, Ulrika Wendt
Rapport
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

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

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 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

The finite element method, Applications

Nils-Erik Wiberg
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

Quality assured plate solution

Fethi Abdulwahab, Nils-Erik Wiberg
Rapport
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
1996

Fem -96, Computational Structural Dynamics

Nils-Erik Wiberg
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

Postprocessed error estimation in free vibration analysis

Nils-Erik Wiberg, Romualdas Bausys
Rapport
1995

A HPC-solver for dynamics with quality assurance

Nils-Erik Wiberg, Xiangdong Li
Rapport
1995

Error estimation for eigenfrequencies and eigenmodes in dynamics

Nils-Erik Wiberg, Romualdas Bausys
Rapport
1995

Advances in finite element technolog

Nils-Erik Wiberg
Samlingsverk (redaktörskap)
1995

Byggnadsmekanik-Strukturmekanik, Studentlitteratur

Nils-Erik Wiberg, Alf Samuelsson
Bok
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

Error Estimation with Postprocessed Finite Element Solutions

Nils-Erik Wiberg, Abdulwahab Fethi
Rapport
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

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

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

Byggnadsmekanik-Strukturmekanik

Alf Samuelsson, Nils-Erik Wiberg
Bok
1995

Advanced Transit Systems, Beam/Track Design

Nils-Erik Wiberg
Rapport
1995

Improved element stresses for node and element patches using superconvergent patch recovery

Nils-Erik Wiberg, Abdulwahab Fethi, Saulius Ziukas
Rapport
1995

FEM-95 A seminar on High Performance Computing

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

Byggnadsmekanik 1984-1994

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

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

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

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

Byggnadsmekanik - Hållfasthetslära

Alf Samuelsson, Nils-Erik Wiberg
Bok
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

Enhanced Superconvergent Patch Recovery Incorporating Equilibrium and Boundary Conditions

Nils-Erik Wiberg, Fethi Abdulwahab, Saulius Ziukas
Rapport
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

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

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

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

FEM-92, The Finite Element Method in the 1990's

Nils-Erik Wiberg
Rapport
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

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

Byggnadsmeknik - Knäckning

Kenneth Runesson, Alf Samuelsson, Nils-Erik Wiberg
Bok
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

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

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

Interactive CAD-FEM analysis

Harald Tägnfors, Nils-Erik Wiberg
Rapport
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

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

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

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 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

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

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

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

Verksamheten vid byggnadsmekanik CTH

Nils-Erik Wiberg, Alf Samuelsson, Kenneth Runesson
Rapport
1991

FEM-91 Recent Advances in FE-applications

Nils-Erik Wiberg
Rapport
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

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

Termisk analys av värmelager med finit elementmetod

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

Byggnadsmekanik - Bärverk

Alf Samuelsson, Nils-Erik Wiberg
Bok
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

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

Heat transfer and heat storage problems calculated by SITU-FLOW-H-V1

Jan Frykestig, Nils-Erik Wiberg
Rapport
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

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

SLOPESTAB : A Computer Program for FE-analysis of progressive Failure in Long Slopes

Nils-Erik Wiberg, Matti Koponen, Kenneth Runesson
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

FEM-beräkning av värmelager jämförande studier och seminarium

Jan Frykestig, Nils-Erik Wiberg
Rapport
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

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
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
1988

Byggnadsmekanik - Strukturmekanikens grunder

Alf Samuelsson, Nils-Erik Wiberg
Bok
1988

Finita elementmetodens grunder

Alf Samuelsson, Nils-Erik Wiberg
Bok
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

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

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

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

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

Byggnadsmekanik - Hållfasthetslära

Alf Samuelsson, Nils-Erik Wiberg
Bok
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

Adaptive finite elements

Nils-Erik Wiberg, Kenneth Runesson
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

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

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

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 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
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

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

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

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

SITU - STRESS - E - V1.

Kenneth Runesson, Harald Tägnfors, Nils-Erik Wiberg et al
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

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

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

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

Finite element analysis of geothermal heat storage problems

Nils-Erik Wiberg
Artikel i vetenskaplig tidskrift
1982

Computer methods for engineering calculations

Nils-Erik Wiberg
SEAS, proceedings, Anniversary Meeting, Stenungsund, 27 sep - 1 okt 1982
Paper i proceeding
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

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

Byggnadsstatik - Bärverk

Alf Samuelsson, Nils-Erik Wiberg
Bok
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

Inledning till finita elementmetoden

Kenneth Runesson, Nils-Erik Wiberg
Bok
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
1979

Iterative solution of finite element equations

Ronny Glemberg, Nils-Erik Wiberg
Rapport
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

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

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

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
1974

Finita elementmetoden

Nils-Erik Wiberg
Samlingsverk (redaktörskap)
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

BALKROST, Datorprogram för analys av plan balkrost

Harald Tägnfors, Nils-Erik Wiberg
Rapport
1973

System Analysis with Mixed Variables

Nils-Erik Wiberg
Rapport
1973

SOLV, SOLVP, General solution routines for symmetric equation systems

Harald Tägnfors, Nils-Erik Wiberg
Rapport
1972

Finite Element Method, Programming in Practice

Alf Samuelsson, Nils-Erik Wiberg
Rapport
1971

Datorprogram för tredimensionell analys av höga byggnader

Harald Tägnfors, Nils-Erik Wiberg
Rapport

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