Ragnar Larsson

Avdelningschef vid Material- och beräkningsmekanik

Ragnar Larsson är professor och avdelningschef för avdelningen material och beräkningsmekanik.



Tyngdpunkten i forskningen ligger inom kontinuums- och materialmekaniken med inriktning mot modellering/simulering av "lokaliserad deformation" som t ex sprickutveckling, med numerisk mekanik (Computational Material and Failure Mechanics). Ragnar jobbar även mycket med porösa materials modellering kopplat till interaktion med fluid- eller gasfaser. Tillämpningarna ligger inom fordonssäkerhet (crashworthiness), skärande bearbetning och processimulering av kompositmaterial.

Källa: chalmers.se
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Visar 224 publikationer

2024

Achieving Long-Range Arbitrary Uniform Alignment of Nanostructures in Magnetic Fields

Viney Ghai, Santosh Pandit, Magnus Svensso et al
Advanced Functional Materials. Vol. 34 (42)
Artikel i vetenskaplig tidskrift
2024

Elastic surrogate modeling of graphene nanoplatelet-reinforced epoxy using computational homogenization

Ragnar Larsson, Danilo J. Carastan, Matheus M. de Oliveira et al
Composites Science and Technology. Vol. 256
Artikel i vetenskaplig tidskrift
2024

Rate dependent compressive failure and delamination growth in multidirectional composite laminates

Vivekendra Singh, Ragnar Larsson, Robin Olsson et al
Journal of Composite Materials. Vol. 58 (3), p. 419-431
Reviewartikel
2024

Proceedings - Swedish Mechanics Days 2024

Fredrik Larsson, Niklas Andersson, Lars Davidson et al
Proceeding (redaktörskap)
2023

Towards an accurate estimation of heat flux distribution in metal cutting by machine learning

Ahmet Semih Ertürk, Amir Malakizadi, Ragnar Larsson
Procedia CIRP. Vol. 117, p. 359-364
Paper i proceeding
2023

Fast simulation of 3D elastic response for wheel–rail contact loading using Proper Generalized Decomposition

Caroline Ansin, Fredrik Larsson, Ragnar Larsson
Computer Methods in Applied Mechanics and Engineering. Vol. 417
Artikel i vetenskaplig tidskrift
2023

X-ray computed tomography-based modelling for feature-dependent and independent meshing of heterogeneous material

Robert Auenhammer, L. P. Mikkelsen, Ragnar Larsson et al
ICCM International Conferences on Composite Materials
Paper i proceeding
2023

Compressive failure and kink-band formation modeling

Ragnar Larsson, Giovanni Brambati, Renaud Gutkin
European Journal of Mechanics, A/Solids. Vol. 99
Artikel i vetenskaplig tidskrift
2023

A micromechanics based model for rate dependent compression loaded unidirectional composites

Vivekendra Singh, Ragnar Larsson, Robin Olsson et al
Composites Science and Technology. Vol. 232
Artikel i vetenskaplig tidskrift
2022

Simulation and Field Measurements of the Long-term Rail Surface Damage due to Plasticity, Wear and Surface Rolling Contact Fatigue Cracks in a Curve

Caroline Ansin, Björn Pålsson, Magnus Ekh et al
CM 2022 - 12th International Conference on Contact Mechanics and Wear of Rail/Wheel Systems, Conference Proceedings, p. 591-601
Paper i proceeding
2022

An ML-based approach for inverse identification of heat flux in machining

Ahmet Semih Ertürk, Amir Malakizadi, Ragnar Larsson
Procedia CIRP. Vol. 115, p. 208-213
Paper i proceeding
2022

A micromechanically based model for dynamic damage evolution in unidirectional composites

Ragnar Larsson, Vivekendra Singh, Robin Olsson et al
International Journal of Solids and Structures. Vol. 238
Artikel i vetenskaplig tidskrift
2021

Gradient-enhanced damage growth modelling of ductile fracture

Ragnar Larsson, Ahmet Semih Ertürk
International Journal for Numerical Methods in Engineering. Vol. 122 (1), p. 5676-5691
Artikel i vetenskaplig tidskrift
2021

A preform deformation and resin flow coupled model including the cure kinetics and chemo-rheology for the VARTM process

Da Wu, Ragnar Larsson, Brina Blinzler
International Journal of Material Forming. Vol. 14 (3), p. 421-434
Artikel i vetenskaplig tidskrift
2021

Application of a Rate Dependent Model on a UD NCF Carbon/Epoxy Composite

Vivekendra Singh, Ragnar Larsson, Robin Olsson et al
PROCEEDINGS - 8th ECCOMAS THEMATIC CONFERENCE ON THE MECHANICAL RESPONSE OF COMPOSITES
Paper i proceeding
2021

Validation of the ductile fracture modeling of CGI at quasi-static loading conditions

SENAD RAZANICA, Lennart Josefson, Ragnar Larsson et al
International Journal of Damage Mechanics. Vol. 30 (9), p. 1400-1422
Artikel i vetenskaplig tidskrift
2020

FE modeling and simulation of machining Alloy 718 based on ductile continuum damage

SENAD RAZANICA, Amir Malakizadi, Ragnar Larsson et al
International Journal of Mechanical Sciences. Vol. 171
Artikel i vetenskaplig tidskrift
2020

A Shell Model for Resin Flow and Preform Deformation in Thin-walled Composite Manufacturing Processes

Da Wu, Ragnar Larsson
International Journal of Material Forming. Vol. 13 (6), p. 1-15
Artikel i vetenskaplig tidskrift
2020

Expanding Puck and Schürmann Inter Fiber Fracture Criterion for Fiber Reinforced Thermoplastic 3D-Printed Composite Materials

Thiago Dutra, Rafael Thiago Luiz Ferreira, Hugo Borelli Resende et al
Materials. Vol. 13 (7)
Artikel i vetenskaplig tidskrift
2020

A micromechanically based model for strain rate effects in unidirectional composites

Ragnar Larsson, Vivekendra Singh, Robin Olsson et al
Mechanics of Materials. Vol. 148
Artikel i vetenskaplig tidskrift
2020

A thermomechanically motivated approach for identification of flow stress properties in metal cutting

Ahmet Semih Ertürk, Amir Malakizadi, Ragnar Larsson
International Journal of Advanced Manufacturing Technology. Vol. 111 (3-4), p. 1055-1068
Artikel i vetenskaplig tidskrift
2019

Modeling of the vacuum assisted resin transfer molding process

Da Wu, Ragnar Larsson, Mohammad Sadegh Rouhi
ICCM22 Proceedings
Paper i proceeding
2019

A gradient enhanced damage growth model for ductile fracture

Ragnar Larsson, Ahmet Semih Ertürk, SENAD RAZANICA et al
ICMM International Conference Material Modelling - Book of Abstracts, p. 6-7
Övrigt konferensbidrag
2019

A Mechanics Based Surface Image Interpretation Method for Multifunctional Nanocomposites

Brina Blinzler, Ragnar Larsson, Karolina Gaska et al
Nanomaterials. Vol. 9 (11), p. 1578-
Artikel i vetenskaplig tidskrift
2019

Failure prediction in fiber-reinforced composites based on continuum damage mechanics

Sergio de Oliveira, Ragnar Larsson, Maurício Donadon et al
Proceedings - 7th ECCOMAS THEMATIC CONFERENCE ON THE MECHANICAL RESPONSE OF COMPOSITES
Paper i proceeding
2019

Modeling and Experimental Validation of the VARTM Process for Thin-Walled Preforms

Da Wu, Ragnar Larsson, Mohammad Sadegh Rouhi
Polymers. Vol. 11 (12)
Artikel i vetenskaplig tidskrift
2019

A ductile fracture model based on continuum thermodynamics and damage

SENAD RAZANICA, Ragnar Larsson, Lennart Josefson
Mechanics of Materials. Vol. 139 (Dec)
Artikel i vetenskaplig tidskrift
2019

Modeling and experimental validation of the vartm process

Da Wu, Ragnar Larsson, Mohammad Sadegh Rouhi
ICCM International Conferences on Composite Materials. Vol. 2019-August
Paper i proceeding
2019

Carbon-fibre composites with graphene filler for enhanced properties

Ragnar Larsson, Brina Blinzler, Linnea Selegård et al
Proceedings of XVIII Brazil MRS Meeting, p. 558-
Paper i proceeding
2019

Effect of strain rate at compressive and tensile loading of unidirectional plies in structural composites

Vivekendra Singh, Ragnar Larsson, Erik Marklund et al
PROCEEDINGS - 7th ECCOMAS THEMATIC CONFERENCE ON THE MECHANICAL RESPONSE OF COMPOSITES
Paper i proceeding
2018

A Continuum Damage Model For Bolted Joint Failure Prediction In Fiber-Reinforced Composites

Alfredo de Faria, Sérgio de Oliveira, Maurício Donadon et al
Övrigt konferensbidrag
2018

Homogenization Method for 2-D Nano-Structure Reinforced Polymer Matrix

Brina Blinzler, Ragnar Larsson, Karolina Gaska et al
Övrigt konferensbidrag
2018

Homogenized free surface flow in porous media for wet-out processing

Da Wu, Ragnar Larsson
International Journal for Numerical Methods in Engineering. Vol. 115 (4), p. 445-461
Artikel i vetenskaplig tidskrift
2018

An element subscale refinement for representation of the progressive fracture based on the phantom node approach

Salar Mostofizadeh, F.P. van der Meer, Martin Fagerström et al
Computers and Structures. Vol. 196, p. 134-145
Artikel i vetenskaplig tidskrift
2018

A viscous regularized damage growth model for ductile fracture

Ragnar Larsson, SENAD RAZANICA, Lennart Josefson
Övrigt konferensbidrag
2018

Homogenization Method for 2-D Nanostructure Reinforced Epoxy

Danilo Carastan, Brina Blinzler, Ragnar Larsson et al
Övrigt konferensbidrag
2018

Damage growth and strain localization in compressive loaded fiber reinforced composites

Ragnar Larsson, Renaud Gutkin, Mohammad Sadegh Rouhi
Mechanics of Materials. Vol. 127, p. 77-90
Artikel i vetenskaplig tidskrift
2017

A MODEL FOR PREDICTING FREE SURFACE FLOW OF THE RTM PROCESS

Da Wu, Ragnar Larsson
ICCM International Conferences on Composite Materials. Vol. 2017-August
Paper i proceeding
2017

XFEM based element subscale refinement for detailed representation of crack propagation in large scale analyses

Salar Mostofizadeh, Martin Fagerström, Ragnar Larsson
International Journal for Numerical Methods in Engineering. Vol. 110 (6), p. 549-572
Artikel i vetenskaplig tidskrift
2016

Proceedings of 29th Nordic Seminar on Computational Mechanics – NSCM29

Ragnar Larsson
Samlingsverk (redaktörskap)
2016

Holistic modeling of composites manufacturing using poromechanics

Mohammad Sadegh Rouhi, Maciej Wysocki, Ragnar Larsson
Advanced Manufacturing: Polymer and Composites Science. Vol. 2
Artikel i vetenskaplig tidskrift
2016

Mesh objective continuum damage models for ductile fracture

Ragnar Larsson, SENAD RAZANICA, Lennart Josefson
International Journal for Numerical Methods in Engineering. Vol. 106 (10), p. 840-860
Artikel i vetenskaplig tidskrift
2016

Modelling of kink-band growth based on the geometrically non-linear theory

Ragnar Larsson, Mohammad Sadegh Rouhi, Renaud Gutkin
ECCM 2016 - Proceeding of the 17th European Conference on Composite Materials
Paper i proceeding
2016

Mesh objective damage modeling of ductile fracture at visco-plastic continuum response

SENAD RAZANICA, Ragnar Larsson, Lennart Josefson
ECCOMAS Congress 2016 - Proceedings of the 7th European Congress on Computational Methods in Applied Sciences and Engineering. Vol. 1, p. 209-215
Paper i proceeding
2016

Damage growth in compressive loadded fibre reinforced composites

Ragnar Larsson, Renaud Gutkin, Mohammad Sadegh Rouhi
International congress on theoretical and applied mechanics (XXIV ICTAM)
Paper i proceeding
2015

Experimental assessment of coupled dual-scale flow-deformation processes in composites manufacturing

Mohammad Sadegh Rouhi, Maciej Wysocki, Ragnar Larsson
Composites Part A: Applied Science and Manufacturing. Vol. 76, p. 215-223
Artikel i vetenskaplig tidskrift
2015

Mesh objective models for ductile fracture based on a damage phase field concept

SENAD RAZANICA, Ragnar Larsson, Lennart Josefsson
CFRAC 2015 - the Fourth International Conference on Computational Modeling of Fracture and Failure of Materials and Structures
Övrigt konferensbidrag
2014

PREDICTION OF THROUGH-THICKNESS STRESS DISTRIBUTION IN LAMINATED SHELL STRUCTURES

Johannes Främby, Jim Brouzoulis, Martin Fagerström et al
Proceedings of NSCM-27: the 27th Nordic Seminar on Computational Mechanics
Paper i proceeding
2014

A fully coupled multiscale shell formulation for the modelling of fibre reinforced laminates

Johannes Främby, Jim Brouzoulis, Martin Fagerström et al
16th European Conference on Composite Materials, ECCM 2014; Seville; Spain; 22 June 2014 through 26 June 2014
Paper i proceeding
2014

On the subscale enrichment of crack tip element in XFEM and the phantom node method

Salar Mostofizadeh, Bert Sluys, Ragnar Larsson et al
Proceedings of the 11th World Congress on Computational Mechanics
Paper i proceeding
2014

Proceedings of 14th European Mechanics of Materials Conference - EMMC14

Ragnar Larsson
Samlingsverk (redaktörskap)
2014

A FE based machining simulation methodology accounting for cast iron microstructure

Goran Ljustina, Ragnar Larsson, Martin Fagerström
Finite Elements in Analysis and Design. Vol. 80, p. 1-10
Artikel i vetenskaplig tidskrift
2014

Rate Sensitive Continuum Damage Models and Mesh Dependence in Finite Element Analyses

Goran Ljustina, Martin Fagerström, Ragnar Larsson
The Scientific World Journal. Vol. 2014
Artikel i vetenskaplig tidskrift
2014

Ductile fracture modeling based on a mesh objective element removal technology

SENAD RAZANICA, Ragnar Larsson, Lennart Josefson
14th European Mechanics of Materials Conference - EMMC14, 27-29 Aug. 2014, Gothenburg, Sweden
Övrigt konferensbidrag
2014

Fracture modeling of composite laminates based on phase field damage evolution in shell kinematics

Ragnar Larsson, Jim Brouzoulis, Martin Fagerström
Proceedings of the 11th World Congress of Computational Mechanics
Paper i proceeding
2014

Process modeling of composite materials - a holistic and generic simulation tool using poromechanics

Mohammad Sadegh Rouhi, Maciej Wysocki, Ragnar Larsson
Proceedings of the 12th International Conference on Flow Processing in Composite Materials (FPCM12), Enschede, Netherlands, 14-16 July 2014
Paper i proceeding
2014

Poromechanical modelling the pre- and post-filling flows in composite manufacturing

Ragnar Larsson, Mohammad Sadegh Rouhi, Maciej Wysocki
14th European Mechanics of Materials Conference (EMMC14)
Paper i proceeding
2013

Modeling of coupled dual-scale flow–deformation processes in composites manufacturing

Mohammad Sadegh Rouhi, Maciej Wysocki, Ragnar Larsson
Composites Part A: Applied Science and Manufacturing. Vol. 46 (1), p. 108-116
Artikel i vetenskaplig tidskrift
2013

FE modeling and numerical implemtation of flow-deformation processes in composites manufacturing

Mohammad Sadegh Rouhi, Maciej Wysocki, Ragnar Larsson
ICCM International Conferences on Composite Materials. Vol. 2013-July, p. 5292-5299
Paper i proceeding
2013

Subscale enrichment of discontinuity for XFEM crack tip element

Martin Fagerström, Salar Mostofizadeh, Ragnar Larsson
Proceedings of the Third International Conference on Computational Modeling of Fracture and Failure of Materials and Structures
Övrigt konferensbidrag
2013

Modeling dual-scale flow-deformation processes in composites manufacturing

Mohammad Sadegh Rouhi, Maciej Wysocki, Ragnar Larsson
Proc. of the 26th Nordic Seminar on Computational Mechanics (NSCM26), Oslo, Norway, 23-25 October 2013
Paper i proceeding
2013

MODELLING DUAL-SCALE FLOW-DEFORMATION PROCESSES IN COMPOSITES MANUFACTURING

Mohammad Sadegh Rouhi, Maciej Wysocki, Ragnar Larsson
19th International Conference on Composite Material (ICCM19) - Montreal - Canada 2013
Paper i proceeding
2013

Rate Sensitive Continuum Damage Models and Mesh Dependence in Finite Element Analyses

Goran Ljustina, Martin Fagerström, Ragnar Larsson
MekIT'13 Seventh National Conference on Computational Mechanics, p. 21-32
Paper i proceeding
2013

Rate Sensitive Continuum Damage Models and Mesh Dependence in Finite Element Analyses

Ragnar Larsson, Goran Ljustina, Martin Fagerström
3rd International Conference on Material Modeling, p. 253-
Paper i proceeding
2013

Hypo– and hyperinelasticity applied to modeling of compacted graphite iron machining simulations

Goran Ljustina, Martin Fagerström, Ragnar Larsson
European Journal of Mechanics, A/Solids. Vol. 37, p. 57-68
Artikel i vetenskaplig tidskrift
2013

Dynamic crack propagation in elastoplastic thin-walled structures: Modelling and validation

Salar Mostofizadeh, Martin Fagerström, Ragnar Larsson
International Journal for Numerical Methods in Engineering. Vol. 96 (2), p. 63-86
Artikel i vetenskaplig tidskrift
2013

A stress-resultant shell theory based on multiscale homogenization

Ragnar Larsson, Mats L Landervik
Computer Methods in Applied Mechanics and Engineering. Vol. 263, p. 1-11
Artikel i vetenskaplig tidskrift
2012

MODELING THE CONSTITUTIVE RESPONSE OF AN ANISOTROPIC DUAL-SCALE FLOW

Mohammad Sadegh Rouhi, Maciej Wysocki, Ragnar Larsson
11th International Conference on Flow Processing in Composite Materials (FPCM11) - Auckland - New Zealand 2012
Paper i proceeding
2012

Ductile dynamic fracture modeling using embedded strong discontinuities in CGI machining simulations

Ragnar Larsson, Goran Ljustina, Martin Fagerström
ECCOMAS 2012, Vienna University of Technology
Paper i proceeding
2012

Composite manufacturing modeling using porous media theory

Mohammad Sadegh Rouhi, Maciej Wysocki, Ragnar Larsson
25th Nordic Seminar on Computational Mechanics (NSCM25), Lund, Swede, 25-26 October 2012, p. 295-298
Paper i proceeding
2012

Ductile dynamic fracture modeling using embedded discontinuities in CGI machining simulations

Ragnar Larsson, Goran Ljustina, Martin Fagerström
proc. 83rd Annual Meeting of the International Association of Applied Mathematics and Mechanics
Paper i proceeding
2012

Continuum-molecular modelling of Graphene

Kaveh Samadikhah, Ragnar Larsson, Faranak Bazooyar et al
Computational Materials Science. Vol. 53 (1), p. 37-43
Artikel i vetenskaplig tidskrift
2012

Modeling of Distortion during Casting and Machining of Aluminum Engine Blocks with Cast-in Gray Iron Liners

Johan Ahlström, Ragnar Larsson
Materials Performance and Characterization. Vol. 1 (1), p. 1-19
Artikel i vetenskaplig tidskrift
2012

Dynamic ductile fracture in shells

Salar Mostofizadeh, Martin Fagerström, Ragnar Larsson et al
Proc ECCOMAS 2012, Vienna University of Technology
Paper i proceeding
2012

Free surface flow and preform deformation in composites manufacturing based on porous media theory

Ragnar Larsson, Mohammad Sadegh Rouhi, Maciej Wysocki
European Journal of Mechanics, A/Solids. Vol. 31 (1), p. 1-12
Artikel i vetenskaplig tidskrift
2012

CONSTITUTIVE MODELLING OF ANISOTROPIC TWO-SCALE FLOW

Mohammad Sadegh Rouhi, Maciej Wysocki, Ragnar Larsson
15th European Conference on Composite Material (ECCM15) - Venice- Italy 2012
Paper i proceeding
2012

Ductile dynamic fracture modeling using embedded strong discontinuities in CGI machining simulations

Goran Ljustina, Ragnar Larsson, Martin Fagerström
Proceedings of the 25th Nordic Seminar on Computational Mechanics
Paper i proceeding
2011

Dynamic Ductile Fracture in Thin-walled Structures based on XFEM

Ragnar Larsson, Salar Mostofizadeh, Jesus Mediavilla et al
Proc. Int. Conf. on computational modeling of fracture and failure of materials and structures (CFRAC 2011)
Paper i proceeding
2011

Hypo-- and hyperinelasticity applied to modeling of compacted graphite iron machining simulations

Goran Ljustina, Martin Fagerström, Ragnar Larsson
Proceedings of the 24th nordic seminar on computational mechanics, p. 59-62
Paper i proceeding
2011

Atomistic continuum modeling of graphene membranes

Ragnar Larsson, Kaveh Samadikhah
Computational Materials Science. Vol. 50 (5), p. 1744-1753
Artikel i vetenskaplig tidskrift
2011

Modeling resin flow, preform deformations and residual stresses in RTM manufacturing

Mohammad Sadegh Rouhi, Ragnar Larsson, Maciej Wysocki
Proc. of International Conference on Manufacturing of Advanced Composites, ICMAC 2011, Belfast, Northern Ireland
Paper i proceeding
2011

Experiments and modelling of the cyclic behaviour of Haynes 282

Rebecka Brommesson, Lisa Grauers, Magnus Ekh et al
Book of abstracts of 2nd International Conference on Material Modeling (ICMM2), Paris (France)
Övrigt konferensbidrag
2011

Resin Flow and Preform Deformation in Composites Manufacturing Based on a Partially Saturated Porous Medium

Ragnar Larsson, Mohammad Sadegh Rouhi, Maciej Wysocki
Computational Plasticity XI - Fundamentals and applications
Paper i proceeding
2011

Constitutive Modeling of CGI Machining Simulations

Goran Ljustina, Ragnar Larsson, Martin Fagerström
Computational Plasticity XI - Fundamentals and Applications
Paper i proceeding
2010

Infusion modelling using two-phase porous media theory

Ragnar Larsson, Mohammad Sadegh Rouhi, Maciej Wysocki
Proc. IV European Conference on Computational Mechanics (ECCM IV 2010), Paris, France
Paper i proceeding
2010

A cohesive zone formulation of fracturing shells based on XFEM

Martin Fagerström, Ragnar Larsson, Jesus Mediavilla
Proceedings of IV European Conference on Computational Mechanics
Paper i proceeding
2010

Modeling resin flow and preform deformation in composite manufacturing based on partially saturated porous media theory

Mohammad Sadegh Rouhi, Ragnar Larsson, Maciej Wysocki
Procedeing of 23rd Nordic Seminar on Computational Mechanics, p. 142-145
Paper i proceeding
2010

Constitutive modeling and validation of CGI machining

Goran Ljustina, Martin Fagerström, Ragnar Larsson
23rd Nordic Seminar on Computational Mechanics, 21-22 October, Stockholm
Övrigt konferensbidrag
2010

Anisotropic and tension-compression asymmetric model for composites consolidation

Maciej Wysocki, Staffan Toll, Ragnar Larsson et al
Composites Part A: Applied Science and Manufacturing. Vol. 41 (2), p. 284-294
Artikel i vetenskaplig tidskrift
2010

Continuum - Molecular Modeling of Graphene Lattice

Kaveh Samadikhah, Ragnar Larsson, Kim Bolton et al
Proc. IV European Conference on Computational Mechanics
Paper i proceeding
2010

Modelling multiple scales in composites manufacturing

Maciej Wysocki, Ragnar Larsson, Staffan Toll
Proceedings of The 10th International Conference on Flow Processes in Composite Materials (FPCM10), Monte Verità, Ascona, CH – July 11-15, 2010
Paper i proceeding
2010

Dynamic fracture modeling in shell structures based on XFEM

Ragnar Larsson, Jesus Mediavilla, Martin Fagerström
International Journal for Numerical Methods in Engineering. Vol. 86 (4-5), p. 499-527
Artikel i vetenskaplig tidskrift
2010

Modelling of distortion during casting and machining

Johan Ahlström, Ragnar Larsson
Conference proceedings ICTPMCS-2010, 31 May – 2 June 2010, Shanghai, China, p. 8 pp-
Paper i proceeding
2009

Modelling the consolidation of partially impregnated prepregs

Maciej Wysocki, Ragnar Larsson, Staffan Toll
17th International Conference on Composite Materials, ICCM-17; Edinburgh; United Kingdom; 27 July 2009 through 31 July 2009
Paper i proceeding
2009

Homogenization of Delamination Growth in an ACA Flip-chip Joint Based on Micropolar Theory

Yan Zhang, Ragnar Larsson
European Journal of Mechanics, A/Solids. Vol. 28, p. 433-444
Artikel i vetenskaplig tidskrift
2009

Aspects of viscoplasticty on manufacturing induced out-of-roundness in engine cylinder liners

Johan Ahlström, Ragnar Larsson, Magnus Ekh
Proc. of 1st International Conference on Material Modelling
Paper i proceeding
2009

A cohesive zone formulation for shell structures based on XFEM

Ragnar Larsson, Jesus Mediavilla, Martin Fagerström
Proceedings of the ECCOMAS Thematic Conference "The extended finite element method", 2009
Paper i proceeding
2009

Computational modelling of dissipative open-cell cellular solids at finite deformations

Per Hård af Segerstad, Staffan Toll, Ragnar Larsson
International Journal of Plasticity. Vol. 25 (5), p. 802-821
Artikel i vetenskaplig tidskrift
2009

A higher-order stress-resultant shell formulation based on multiscale homogenization

Ragnar Larsson, Mats L Landervik
10th International Conference on Computational Plasticity, COMPLAS X; Barcelona; Spain; 2 September 2009 through 4 September 2009
Paper i proceeding
2009

A micropolar theory for the finite elasticity of open-cell cellular solids

Per Hård af Segerstad, Staffan Toll, Ragnar Larsson
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences. Vol. 465 (2103), p. 843-865
Paper i proceeding
2009

Semi-Continuum Modeling of a Graphene Lattice Based on Tersoff-Brenner Atomistic Potential

Kaveh Samadikhah, Ragnar Larsson
Proceedings of the 22nd Nordic Seminar on Computational Mechanics
Paper i proceeding
2009

Two phase continuum modelling of composites consolidation

Maciej Wysocki, L. E. Asp, Staffan Toll et al
Plastics, Rubber and Composites. Vol. 38 (2-4), p. 93-97
Artikel i vetenskaplig tidskrift
2009

Meso-level material modelling of compacted graphite iron and maching process simulation

Goran Ljustina, Ragnar Larsson
Proceedings of the 22nd Nordic Seminar on Computational Mechanics
Paper i proceeding
2008

Experimental Investigation and Micropolar Modelling of the Anisotropic Conductive Adhesive Flip-Chip Interconnection

Yan Zhang, Johan Liu, Ragnar Larsson et al
Journal of Adhesion Science and Technology. Vol. 22 (14), p. 1717-1731
Artikel i vetenskaplig tidskrift
2008

TWO-PHASE CONTINUUM MODELLING OF COMPOSITES CONSOLIDATION

Maciej Wysocki, Leif Asp, Staffan Toll et al
Proc. of 13th European Conference on Composite Material, Stockholm, Sweden
Paper i proceeding
2008

Atomistic Continuum Modeling of Mono Layer Graphene Membranes

Ragnar Larsson, Kaveh Samadikhah
21st Nordic Seminar on Compuational Mechanics (T. Kvamsdal, K.M. Mathisen and B. Pettersen Eds.), p. 108-111
Paper i proceeding
2008

Homogenization and Shell Theory for Modeling Thin Porous Layers

Mats L Landervik, Ragnar Larsson
21st Nordic Seminar on Compuational Mechanics (T. Kvamsdal, K.M. Mathisen and B. Pettersen Eds.), p. 147-148
Paper i proceeding
2008

Understanding BGA interconnect interface behaviour using Micropolar theory

Yan Zhang, Ragnar Larsson, Johan Liu
Journal of Electronics Packaging
Artikel i vetenskaplig tidskrift
2008

A thermo-mechanical cohesive zone formulation for ductile fracture

Martin Fagerström, Ragnar Larsson
Journal of the Mechanics and Physics of Solids. Vol. 56 (10), p. 3037-3058
Artikel i vetenskaplig tidskrift
2008

Micropolar Cohesive Zone Model for Delamination Failure in Microsystem Interconnects

Yan Zhang, Ragnar Larsson, Jing-yu Fan et al
Proceedings of the 22nd International Congress of Theoretical and Applied Mechanics
Paper i proceeding
2008

Experimental and Modeling of the Stress-Strain Behavior of a BGA Interconnect Due to Thermal Load

Yan Zhang, Johan Liu, Ragnar Larsson
Journal of Electronic Packaging, Transactions of the ASME. Vol. 130 (2), p. 0210101-0210107
Artikel i vetenskaplig tidskrift
2008

Multi-Scale Homogenization of Thin Foam Layers Represented by Shell Elements

Mats L Landervik, Ragnar Larsson
International Conference Impact Loading of Lightweight Structures. Trondheim, Norway. June 17-19, 2008. (Edited by A.H. Clausen and M. Langseth), p. 35-36
Paper i proceeding
2008

A constitutive equation for open-cell cellular solids, including viscoplasticity, damage and deformation induced anisotropy

Per Hård af Segerstad, Ragnar Larsson, Staffan Toll
International Journal of Plasticity. Vol. 24 (5), p. 896-914
Artikel i vetenskaplig tidskrift
2008

Multi-Scale Homogenization of Thin Foam Layers using Shell Theory

Ragnar Larsson, Mats L Landervik
Proc. 8th. World Congress on Computational Mechanics (WCCM8)
Paper i proceeding
2008

Approaches to dynamic fracture modelling at finite deformations

Martin Fagerström, Ragnar Larsson
Journal of the Mechanics and Physics of Solids. Vol. 56 (613-639)
Artikel i vetenskaplig tidskrift
2008

Hyperelastic Constitutive Models for Consolidation of Commingled Yarn Based Composites

Maciej Wysocki, Staffan Toll, Ragnar Larsson et al
proceedings of 9th International Conference on Flow Processes in Composite Materials
Paper i proceeding
2008

Modeling of large inelastic deformations of foams with respect to the point of compaction

Mats L Landervik, Ragnar Larsson
European Journal of Mechanics - A/Solids. Vol. 27 (2), p. 234-246
Artikel i vetenskaplig tidskrift
2008

Experimental investigation and micropolar modelling of the anisotropic conductive adhesive flip-chip interconnection

Y. Zhang, Johan Liu, Ragnar Larsson et al
Electrically Conductive Adhesives, p. 411-425
Kapitel i bok
2008

Approaches to dynamic fracture modeling at finite deformations

Martin Fagerström, Ragnar Larsson
IUTAM Symposium - Progress in the Theory and Numerics of Configurational Mechanics (book of abstracts), p. 69-
Paper i proceeding
2007

Interface modelling microsystem interconnections using micropolar theory and discontinuous approximation

Yan Zhang, Ragnar Larsson, Jing-yu Fan et al
Computers & Structures. Vol. 85 (19-20), p. 1500-1513
Artikel i vetenskaplig tidskrift
2007

Micropolar Delamination Modelling for ACF Flip-chip Joints in Microsystem

Yan Zhang, Ragnar Larsson
Proceedings of the 20th Nordic Seminar on Computational Mechanics, 23-24 November, Gothenburg, Sweden
Övrigt konferensbidrag
2007

PBGA Interconnect Behavior under Thermal Effects

Yan Zhang, Johan Liu, Ragnar Larsson
Proceedings of International Conference on Electronics Packaging (ICEP2007), Tokyo, Japan, p. 329-334
Paper i proceeding
2007

Approaches to dynamic fracture modelling at finite deformations

Ragnar Larsson, Martin Fagerström
International Symposium on Defect and Material Mechanics, ISDMM 2007, March 25-29Aussois, France
Paper i proceeding
2007

Press forming of commingled yarn based composites: The preform contribution

Maciej Wysocki, Staffan Toll, Ragnar Larsson
Composites Science and Technology. Vol. 67 (3-4), p. 515-524
Artikel i vetenskaplig tidskrift
2007

Pore–gas interaction in foams at finite deformation using staggered solution techniques

Mats L Landervik, Ragnar Larsson
Computer Methods in Applied Mechanics and Engineering. Vol. 197, p. 148-159
Artikel i vetenskaplig tidskrift
2007

Homogenization of microsystem interconnects based on micropolar theory and discontinuous kinematics

Ragnar Larsson, Yan Zhang
Journal of the Mechanics and Physics of Solids. Vol. 55, p. 819-841
Artikel i vetenskaplig tidskrift
2007

Second order multi-scale micropolar model for microsystem interconnections

Yan Zhang, Johan Liu, Jing-yu Fan et al
Proceedings of the Fifth International Conference on Nonlinear Mechanics (ICNM-V), p. 1434-1439
Paper i proceeding
2007

Constitutive models for consolidation of commingled yarn based composites

Maciej Wysocki, Ragnar Larsson, Staffan Toll
Euromech Colloquium 489 - "Modelling Multiphase Materials", Chalmers, Göteborg, Sweden, Sept. 19 - 21
Övrigt konferensbidrag
2007

Pore-gas interaction in foams at finite deformation using staggered solution techniques

Mats L Landervik, Ragnar Larsson
Euromech Colloquium 489 - "Modelling Multiphase Materials", Chalmers, Göteborg, Sweden, Sept. 19 - 21
Övrigt konferensbidrag
2007

Multi-scale homogenization of thin foam layers

Mats L Landervik, Ragnar Larsson
Proceedings of the 20th Nordic Seminar on Computational Mechanics, 23-24 November, Gothenburg, Sweden
Övrigt konferensbidrag
2007

An approach to model dissipative open-cell cellular solids at finite deformation

Per Hård af Segerstad, Ragnar Larsson, Staffan Toll
Euromech Colloquium 489 - "Modelling Multiphase Materials", Chalmers, Göteborg, Sweden, Sept. 19 - 21
Övrigt konferensbidrag
2007

A second-order homogenization procedure for multi-scale analysis based on micropolar kinematics

Ragnar Larsson, Diebels Stefan
International Journal for Numerical Methods in Engineering. Vol. 69, p. 2485-2512
Artikel i vetenskaplig tidskrift
2007

On the modelling of open-cell cellular solids subjected to high compressive deformations

Per Hård af Segerstad, Ragnar Larsson, Staffan Toll
Proceedings of the 20th Nordic Seminar on Computational Mechanics, 23-24 November, Gothenburg, Sweden
Övrigt konferensbidrag
2007

Thermo-mechanical Modeling of Ductile Crack Propagation with Application to High Velocity Cutting

Martin Fagerström, Ragnar Larsson
9th US National Congress on Computational Mechanics, CD (1p abstract)
Paper i proceeding
2006

Micromechanical model of a dissipative open-cell cellular solid

Per Hård af Segerstad, Ragnar Larsson, Staffan Toll
Proceedings of the 6th European Solid Mechanics Conference, Budapest
Övrigt konferensbidrag
2006

Higher Order Homogenization of a Microsystem Interface Based on Micropolar Theory

Ragnar Larsson, Yan Zhang
Proc. 6th European Solid Mechanics Conference (ESMC 2006), 28 Aug. - 1 Sept. 2006, Budapest, Hungary
Paper i proceeding
2006

Interface Modelling of ACA Interconnects Using Micropolar Theory

Yan Zhang, Ragnar Larsson, Johan Liu
2005 Conference on High Density Microsystem Design and Packaging and Component Failure Analysis, HDP'05; Shanghai; China; 27 June 2005 through 29 June 2005, p. Art. no. 4017426-
Paper i proceeding
2006

Pore-gas interaction in polymeric foam with respect to energy absorption

Mats L Landervik, Ragnar Larsson
Proc. III European Conference on Computational Mechanics - Solids, Structures and Coupled problems in Engineering, (ECCM-2006), June 5-9, Lisbon, Portugal
Paper i proceeding
2006

Finite Deformation Fracture Modelling of a Thermo-Mechanical Cohesive Zone

Ragnar Larsson, Martin Fagerström
Proceedings of 3rd European Conference on Computational Mechanics, Lisbon, Portugal, June 5-9, 2006
Paper i proceeding
2006

A rate-dependent thermo-mechanical cohesive zone model formulated in the context of PUFEM fracture modelling

Martin Fagerström, Ragnar Larsson
Proceedings of 7th World Congress on Computational Mechanics, Los Angeles, California, USA, July 16-22, 2006
Paper i proceeding
2006

Theory and numerics for finite deformation fracture modelling using strong discontinuities

Martin Fagerström, Ragnar Larsson
International Journal for Numerical Methods in Engineering. Vol. 66 (6), p. 911-948
Artikel i vetenskaplig tidskrift
2006

Study on the Multi-Scale Properties of the Internal Structure in ACA Interconnection

Yan Zhang, Ragnar Larsson, Jing-yu Fan et al
Proc. 1 st Electronics Systemintegration Technology Conference, 2006 (ESTC 2006), 5 - 7 Sept. 2006, Dresden, Germany. Vol. 2, p. 757-761
Paper i proceeding
2006

Homogenization Model Based on Micropolar Theory for the Interconnection Layer in Microsystem Packaging

Yan Zhang, Ragnar Larsson, Jing-yu Fan et al
Proceedings of the eight IEEE CPMT International Symposium on High Density Packaging and Component Failure Anlaysis (HDP´06), p. 166-170
Paper i proceeding
2006

Micro-mechanical model of a viscoplastic open-cell foam

Per Hård af Segerstad, Ragnar Larsson, Staffan Toll
Proc. 6th European Solid Mechanics Conference (ESMC 2006), 28 Aug. - 1 Sept. 2006, Budapest, Hungary
Paper i proceeding
2005

Finite element model for axisymmetric consolidation of thermoplastic composite materials

Maciej Wysocki, Leif Asp, Staffan Toll et al
Proc. ASC 20th Annual Technical Conference, September 7-9, Philadelphia, USA
Paper i proceeding
2005

Hydrostatic consolidation of fibre composites

Maciej Wysocki, Ragnar Larsson, Staffan Toll
Composites Science and Technology. Vol. 65, p. 1507-1519
Artikel i vetenskaplig tidskrift
2005

Modeling of large inelastic deformations of a structural foam at high deformation rates

Mats L Landervik, Ragnar Larsson
", Computational Plasticity VIII - Fundamentals and applications, D.R.J. Owen, E. Onate, and B. Suarez, CIMNE, Barcelona, p. 119-122
Paper i proceeding
2005

An interface cohesive zone model based on an inverse strong discontinuity formulation

Ragnar Larsson, Martin Fagerström
Mechanics of Material Forces; (Advances in Mechanics and Mathematics, Vol. 11) ; Steinmann, Paul; Maugin, Gérard A. (Eds.), p. Chapter 27-
Kapitel i bok
2005

Micro-mechanical model of a viscoplastic open-cell foam

Per Hård af Segerstad, Ragnar Larsson, Staffan Toll
Computational Plasticity VIII - Fundamentals and applications, D.R.J. Owen, E. Onate, and B. Suarez, CIMNE, Barcelona, p. 755-758
Paper i proceeding
2005

Inverse Discontinuity Formulation of Fracture

Martin Fagerström, Ragnar Larsson
11th International Conference on Fracture
Övrigt konferensbidrag
2005

Inverse discontinuity formulation of fracture

Ragnar Larsson, Martin Fagerström
J. Struct. Mech. - Rakenteiden Mekaniikka. Vol. 38 (3), p. 27-30
Artikel i övrig tidskrift
2005

A framework for fracture modelling based on the material forces concept with XFEM kinematics

Ragnar Larsson, Martin Fagerström
Int. J. Numer. Meth. Engng.. Vol. 62, p. 1763-1788
Artikel i vetenskaplig tidskrift
2005

Modeling of large inelastic deformations of foam with respect to energy absorption

Ragnar Larsson, Mats L Landervik
Poromechanics III, Biot Centennial Conference, Oclahoma City, May 24-27, 2005, p. 95-100
Paper i proceeding
2005

Micromechanical model of a viscoplastic open-cell foam

Per Hård af Segerstad, Ragnar Larsson, Staffan Toll
Proceedings of the VIII International Conference on Computational Plasticity, COMPLAS VIII, Barcelona
Övrigt konferensbidrag
2005

Interface Modelling of an ACA Interconnect Using Micropolar Theory and Discontinuous Approximation

Yan Zhang, Ragnar Larsson, Jingyu Fan et al
Proceedings of the 7th International IEEE CPMT Conference on High Density Microsystem Design, Packaging and Failure Analysis (HDP05), p. pp115-119
Paper i proceeding
2005

Process rheology of fibre composites

Staffan Toll, Ragnar Larsson, Maciej Wysocki et al
Proc. Nordiska Polymerdagarna, August 17-19, Gothenburg, Sweden
Övrigt konferensbidrag
2005

A second order homogenization procedure for multi-scale analysis based on nonlinear micro-polar kinematics

Ragnar Larsson, Tobias Ebinger, Stefan Diebels
Computational Plasticity VIII - Fundamentals and applications, D.R.J. Owen, E. Onate, and B. Suarez, CIMNE, Barcelona, p. 1166-1169
Paper i proceeding
2005

Microsystem Interconnections Modelling Using Micropolar Theory and Discontinuous Approximation

Yan Zhang, Ragnar Larsson, Jingyu Fan et al
Proceedings of 5th International Conference on Polymers and Adhesives in Microelectronics and Photonics (Polytronic 2005), p. 176-179
Paper i proceeding
2005

Finite deformation fracture modelling using direct/inverse strong discontinuities

Martin Fagerström, Ragnar Larsson
Computational Plasticity VIII - Fundamentals and applications, D.R.J. Owen, E. Onate, and B. Suarez, CIMNE, Barcelona, p. 450-453
Paper i proceeding
2005

Interface Modelling of an ACA Interconnect Using Micropolar Theory and Discontinuous Approximation

Yan Zhang, Ragnar Larsson, Jing-yu Fan et al
Proc. The 5th Int. IEEE Conference on Polymers and Adhesives in Microelectronics and Photonics, (Polytronic 2005), October 23-26, Warsaw, Poland
Paper i proceeding
2004

Process modeling of composites using two-phase porous media theory

Ragnar Larsson, Staffan Toll, Maciej Wysocki
Eur. J. Mech. A/Solids. Vol. 23, p. 15-36
Artikel i vetenskaplig tidskrift
2004

A Discontinuous Shell-Interface Element for Delamination Analysis of Laminated Composite Structures

Ragnar Larsson
Comp. Meth. Appl. Mech. Engng. Vol. 193, p. 3173-3194
Artikel i vetenskaplig tidskrift
2003

Rotational Interface Formulation for Delamination Analysis of Composite Laminates

Niklas Jansson, Ragnar Larsson
Computers and Structures. Vol. 81, p. 2705-2716
Artikel i vetenskaplig tidskrift
2003

Modelling press forming of fibre composites using two-phase continuum theory

Maciej Wysocki, Ragnar Larsson, Staffan Toll
Polish.Swedish Symposium, Gothenburg, Dec 12, 2003
Artikel i vetenskaplig tidskrift
2003

Sprickmodellering enligt konceptet med materiella krafter

Martin Fagerström, Ragnar Larsson
Svenska Mekanikdagar, Göteborg, 2003, p. 1p abstract-
Övrigt konferensbidrag
2002

Theory and numerics of localization in a fluid-saturated elastoplastic porous medium

Ragnar Larsson, Jonas Larsson, Kenneth Runesson
Porous Media: Theory, Experiments and Numerical Applications , Springer multi-author volume / edited by W. Ehlers, J. Bluhm, p. 315-340
Kapitel i bok
2002

Non-Linear Analysis of Nearly Saturated Porous Media: Theoretical and Numerical Formulation

Jonas Larsson, Ragnar Larsson
Comp. Meth. Appl. Mech. Engng.. Vol. 191, p. 3885-3907
Artikel i vetenskaplig tidskrift
2002

Modelling of composites forming processes using multi-phase continuum theory

Maciej Wysocki, Ragnar Larsson, Staffan Toll
Proceedings of the ninth International Conference on Fibre Reinforced Composites, Newcastle, September 13-15, 2002, p. 345-353
Paper i proceeding
2002

A framework for the modeling of press forming of fiber composites using two-phase porous media theory

Ragnar Larsson, Staffan Toll
Poromechanics II, Second Biot Conf. Poromechanics, Grenoble, France, August 26-28, 2002, p. 237-243
Paper i proceeding
2002

Wysocki, Maciej

Maciej Wysocki, Ragnar Larsson, Staffan Toll
9th Int. Conf. on Fibre Reinforced Composites, FRC 2002.
Paper i proceeding
2002

A Discontinuous Shell Element for Delamination Analysis of Laminated Composite Structures

Ragnar Larsson, Niklar Jansson
Proceedings of the Fifth World Congress on Computational Mechanics (WCCM V), July 7-12, 2002, Vienna, Austria,
Övrigt konferensbidrag
2002

Geometrically Non-linear Damage Interface Based on Regularized Strong Discontinuity

Ragnar Larsson, Niklas Jansson
International Journal for Numerical Methods in Engineering. Vol. 54, p. 473-497
Artikel i vetenskaplig tidskrift
2001

A Geometrically Non-linear Interface Debonding Model

Ragnar Larsson, Niklas Jansson
European Conference on Computational Mechanics, ECCM-2001,June 26-29, 2001, Cracow, Poland,
Paper i proceeding
2001

A Damage Model for Simulation of Mixed Mode Delamination Growth

Niklas Jansson, Ragnar Larsson
Composite Structures. Vol. 53, p. 409-417
Artikel i vetenskaplig tidskrift
2000

Finite element modelling of delamination progression under mixed mode loadings

Niklas Jansson, Ragnar Larsson, Staffan Toll
Proceedings of the eighth International Conference on Fibre Reinforced Composites, Newcastle, September 13-15, 2000
Paper i proceeding
2000

Finite Element Analysis of Localization of Deformation and Fluid Pressure in an Elastoplastic Porous Medium

Jonas Larsson, Ragnar Larsson
Int. J. Solids Structures. Vol. 37, p. 7231-7257
Artikel i vetenskaplig tidskrift
2000

Localization Analysis of a Fluid Saturated Elastoplastic Porous Medium Using Regularized Discontinuities

Jonas Larsson, Ragnar Larsson
Mechanics of Cohesive-Frictional Materials. Vol. 5 (7), p. 565-582
Artikel i vetenskaplig tidskrift
1999

Computational Strategy for Capturing Localization in Undrained Soil

Jonas Larsson, Ragnar Larsson
Computational Mechanics. Vol. 24, p. 293-303
Artikel i vetenskaplig tidskrift
1999

On Localization in Thermo-Elastoplastic Solids Subjected to Adiabatic Conditions

Kenneth Runesson, Paul Steinmann, Ragnar Larsson
Eur. J. Mech. A/Solids. Vol. 18, p. 557-579
Artikel i vetenskaplig tidskrift
1998

Finite element embedded localization band for finite strain plasticity based on regularized strong discontinuity

Ragnar Larsson, Paul Steinmann, Kenneth Runesson
Mechanics of Cohesive-Frictional Materials. Vol. 4 (2), p. 171-194
Artikel i vetenskaplig tidskrift
1998

Localization in Hyperelasto-Plastic Porous Solids Subjected to Undrained Conditions

Kenneth Runesson, Ragnar Larsson, Stein Sture
Int. J. Solids Structures. Vol. 35 (31-32), p. 4239-4255
Artikel i vetenskaplig tidskrift
1997

On the localization properties of multiplicative hyperelasto-plastic continua with strong discontinuities

Paul Steinmann, Ragnar Larsson, Kenneth Runesson
Int. J. Solids Structures. Vol. 34 (8), p. 969-990
Artikel i vetenskaplig tidskrift
1996

Localization properties of a frictional material model based on discontinuous approximation

Ragnar Larsson, Kenneth Runesson, Kenneth Axelsson
Int. J. Num. Anal. Meth. Geomech.. Vol. 20, p. 771-783
Artikel i vetenskaplig tidskrift
1996

Element-Embedded Localization Band based on Regularized Strong Discontinuity

Ragnar Larsson, Kenneth Runesson
Journal of Engineering Mechanics, ASCE. Vol. 122 (5), p. 402-411
Artikel i vetenskaplig tidskrift
1996

Element-embedded localization band based and regularized displacement discontinuity

Ragnar Larsson, Kenneth Runesson
Journal of Engineering Mechanics. Vol. 122 (5), p. pp. 402-411
Artikel i vetenskaplig tidskrift
1996

Embedded localization band in undrained soil based on regularized strong discontinuity theory and FE-analysis

Ragnar Larsson, Kenneth Runesson, Stein Sture
International J. Solids and Structures. Vol. 33 (20-22), p. pp. 3081-3101
Artikel i vetenskaplig tidskrift
1996

Implicit integration and consistent linearization for yield criteria of the Mohr-Coulomb type

Ragnar Larsson, Kenneth Runesson
Mechanics of Cohesive-Frictional Materials. Vol. 1, p. 367-383
Artikel i vetenskaplig tidskrift
1996

Embedded localization band in undrained soil based on regularized strong discontinuity - Theory and FE-analysis

Ragnar Larsson, Kenneth Runesson, Stein Sture
Int. J. Solids Structures. Vol. 33 (20-22), p. 3081-3101
Artikel i vetenskaplig tidskrift
1995

Cohesive crack models for brittle materials derived from localization of damage coupled to plasticity

Ragnar Larsson, Kenneth Runesson
International Journal of Fracture. Vol. 64, p. pp. 101-122
Artikel i vetenskaplig tidskrift
1995

A generalized fictitious crack model based on plastic localization and discontinuous approximation

Ragnar Larsson
International Journal for Numerical Methods in Engineering. Vol. 38, p. pp. 3167-3188
Artikel i vetenskaplig tidskrift
1995

Cohesive Crack Models for Brittle Materials derived from Localization of Damage Coupled to Plasticity

Ragnar Larsson, Kenneth Runesson
International Journal of Fracture. Vol. 69, p. 101-122
Artikel i vetenskaplig tidskrift
1995

A Generalized Fictitious Crack Model based on Plastic Localization and Discontinuous Approximation

Ragnar Larsson
International Journal for Numerical Methods in Engineering. Vol. 38, p. 3167-3188
Artikel i vetenskaplig tidskrift
1993

Properties of Incremental Solutions for Dissipative Material

Kenneth Runesson, Ragnar Larsson
Journal of Engineering Mechanics, ASCE. Vol. 119, p. 647-666
Artikel i vetenskaplig tidskrift
1993

Discontinuous Displacement Approximation for Capturing Plastic Localization

Ragnar Larsson, Kenneth Runesson, Niels-Saabye Ottosen
International Journal for Numerical Methods in Engineering. Vol. 36, p. 2087-2105
Artikel i vetenskaplig tidskrift
1993

Discontinuous Displacement Approximation for Capturing Plastic Localization

Ragnar Larsson, Kenneth Runesson, Niels Saabye Ottosen
International Journal for Numerical Methods in Engineering. Vol. 36, p. pp. 2087-2105
Artikel i vetenskaplig tidskrift
1993

Properties of Incremental Solutions for Dissipative Material

Kenneth Runesson, Ragnar Larsson
Journal of Engineering Mechanics, ASCE. Vol. 119, p. pp. 647-666
Artikel i vetenskaplig tidskrift
1993

Formulation and Implementation of Conditions for Frictional Contact

Kenneth Runesson, Marek Klisinski, Ragnar Larsson
Engineering Computations. Vol. 10, p. 3-14
Artikel i vetenskaplig tidskrift
1993

Formulation and Implementation of Conditions for Frictional Contact

Kenneth Runesson, Marek Klisinski, Ragnar Larsson
Engineering Computations. Vol. 10, p. pp. 3-14
Artikel i vetenskaplig tidskrift
1991

Numerical Simulation of Plastic Localization using FE-mesh Realignment

Ragnar Larsson, Kenneth Runesson, Alf Samuelsson
Progress in Computational Analysis of Inelastic Structures, p. 34 pp.-
Artikel i vetenskaplig tidskrift
1991

Finite Element Simulation of Localized Plastic Deformation

Ragnar Larsson, Kenneth Runesson, Stein Sture
Archive of Applied Mechanics. Vol. 61, p. 305-317
Artikel i vetenskaplig tidskrift
1991

Finite Element Simulation of Localized Plastic Deformation

Ragnar Larsson, Kenneth Runesson, Stein Sture
Ingenieur-Archive, p. pp. 37-
Artikel i vetenskaplig tidskrift
1990

Characteristics and Computational Procedure in Softening Plasticity

Kenneth Runesson, Ragnar Larsson, Stein Sture
Journal of Engineering Mechanics. Vol. 112 (8), p. pp. 1628-1646
Artikel i vetenskaplig tidskrift
1990

Numerical simulation of plastic localization

Ragnar Larsson
Doktorsavhandling
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

Characteristics and computational procedure in softening plasticity

Kenneth Runesson, Ragnar Larsson, Stein Sture
ASCE, Journal of Engineering Mechanics. Vol. 115 (8), p. pp. 1628-1646
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

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
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

Characteristics and computational procedure in softening plasticity

Kenneth Runesson, Ragnar Larsson
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

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

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

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
1985

Utredning om mini- och mikrodatorer vid CTH

Ragnar Larsson, Odd Tullberg
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

SITU - STRESS - E - V1.

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

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Visar 12 forskningsprojekt

2023–2027

REaL-tIme characterization of ANisotropic Carbon-based tEchnological fibres, films and composites

Leif Asp Material- och beräkningsmekanik
Martin Fagerström Material- och beräkningsmekanik
Ragnar Larsson Material- och beräkningsmekanik
Johan Friemann Material- och beräkningsmekanik
Krisztián Hertelendy Material- och beräkningsmekanik
Huixin Chen Material- och beräkningsmekanik
Europeiska kommissionen (EU)

2022–2025

Micromorphic multiscale modeling of the workpiece material flow during metal cutting

Ragnar Larsson Material- och beräkningsmekanik
Amir Malakizadi Material och tillverkning
Vetenskapsrådet (VR)

1 publikation finns
2019–2022

Grafenförstärkta, multifunktionella termoplaster för flygapplikationer

Ragnar Larsson Material- och beräkningsmekanik
VINNOVA

2017–2020

En simuleringsbaserad för guide för prediktion av skärbarhet

Amir Malakizadi Material och tillverkning
SENAD RAZANICA Material- och beräkningsmekanik
Ragnar Larsson Material- och beräkningsmekanik
VINNOVA

4 publikationer finns
2017–2020

En simuleringsbaserad för guide för prediktion av skärbarhet

Ragnar Larsson Material- och beräkningsmekanik
VINNOVA

1 publikation finns
2017–2019

Multifunktionell kompositstruktur med hjälp av Grafen (MULTIGRAPH)

Ragnar Larsson Material- och beräkningsmekanik
VINNOVA

1 publikation finns
2014–2017

En skalteori baserad på tvåfas-kontinuum för processimulering av strukturella kompositer

Ragnar Larsson Material- och beräkningsmekanik
Vetenskapsrådet (VR)

3 publikationer finns
2013–2019

Effektiv simuleringsdriven utvecklingsmetodik för bilstrukturer i kompositmaterial

Leif Asp Material- och beräkningsmekanik
Ragnar Larsson Material- och beräkningsmekanik
Vetenskapsrådet (VR)

9 publikationer finns
2013–2017

Kompressionsbrott i komplexa NCF kompositstrukturer - KOMPRESS

Ragnar Larsson Material- och beräkningsmekanik
VINNOVA

4 publikationer finns
2013–2015

Prediktering av termomekanisk utmattning av superlegeringskomponenter

Ragnar Larsson Material- och beräkningsmekanik
VINNOVA

2013–2020

Modellering av krockbeteendet i framtida lättviktsfordon

Ragnar Larsson Material- och beräkningsmekanik
Martin Fagerström Material- och beräkningsmekanik
Jim Brouzoulis Material- och beräkningsmekanik
Johannes Främby Material- och beräkningsmekanik
VINNOVA

6 publikationer finns
2011–2013

Snabba deformationsförlopp vid maskinbearbetning och containment

Christer Persson Materialteknologi
Ragnar Larsson Material- och beräkningsmekanik
VINNOVA

1 publikation finns
Det kan finnas fler projekt där Ragnar Larsson medverkar, men du måste vara inloggad som anställd på Chalmers för att kunna se dem.