2023

2023

  1. André, Victor; Costas Pino, Miguel; Langseth, Magnus; Morin, David Didier. Behavior and large-scale modeling of multi-sheet aluminum connections with self-piercing rivets. Journal of Manufacturing Science and Engineering 2023

  2.  André, Victor; Costas Pino, Miguel; Langseth, Magnus; Morin, David Didier. Neural network modelling of mechanical joints for the application in large-scale crash analyses. International Journal of Impact Engineering 2023 ;Volum 177.

  3.  Antoniou, Andria; Børvik, Tore; Kristoffersen, Martin. Evaluation of automatic versus material test-based calibrations of concrete models for ballistic impact simulations. International Journal of Protective Structures 2023

  4. Dæhli, Lars Edvard Blystad; Johnsen, Joakim; Berstad, Torodd; Børvik, Tore; Hopperstad, Odd Sture. An experimental–numerical study on the evolution of the Taylor–Quinney coefficient with plastic deformation in metals. Mechanics of materials (Print) 2023 ;Volum 179.

  5. Dæhli, Lars Edvard Blystad; Olufsen, Sindre Nordmark; Kristensen, Tore Andre; Børvik, Tore; Hopperstad, Odd Sture. Influence of constituent particles on fracture of aluminum alloys under high-triaxiality loading. Materials Science & Engineering: A 2023 ;Volum 864. s. 1-16

  6. Frafjord, Jonas; Friis, Jesper; Holmestad, Randi; Ringdalen, Inga Gudem. On the Atomic Structure of the β′′ Precipitate by Density Functional Theory. Computational Materials Science 2023 ;Volum 217.

  7. Frodal, Bjørn Håkon; Lodgaard, Lars; Langsrud, Yngve; Børvik, Tore; Hopperstad, Odd Sture. Influence of local microstructural variations on the bendability of aluminium extrusions: experiments and crystal plasticity analyses. Journal of applied mechanics 2023 ;Volum 90

  8. Jacobsen, Øystein Eirik Kvist; Kristoffersen, Martin; Dey, Sumita; Børvik, Tore. Projectile Impact on Plain and Reinforced Concrete Slabs. Journal of Dynamic Behavior of Materials 2023

2022

2022

  1. B.S. Elveli, T. Berstad, T. Børvik, V. Aune. Performance of thin blast-loaded steel plates after ballistic impact from small-arms projectiles. International Journal of Impact Engineering 2022; 173: 104437
  2. B.S. Elveli, M.B. Iddberg, T. Børvik, V. Aune. On the strength-ductility trade-off in blast loaded thin-walled structures - An experimental study. Thin-Walled Structures 2022; 171:108787
  3. B.S. Elveli, O. Vestrum, K.O. Hauge, T. Berstad, T. Børvik, V. Aune. Thin steel plates exposed to combined ballistic impact and partially confined airblast loading. Engineering Failure Analysis 2022, 144: 106943
  4. J. Frafjord, J. Friis, R. Holmestad, I.G. Ringdalen. On the Atomic Structure of the β′′ Precipitate by Density Functional Theory. Computational Materials Science 2023, Volume 217.
  5. B.H. Frodal, S. Thomesen, T. Børvik, O.S. Hopperstad. On fracture anisotropy in textured aluminium alloys. International Journal of Solids and Structures 2022;244-245, 111563
  6. A.B. Hagen, S. Wenner, R. Bjørge, W.D. Ruben, C.D. Marioara, R. Holmestad, I.G. Ringdalen. Local mechanical properties and precipitation inhomogeneity in large-grained Al-Mg-Si alloy. Journal of Materials Science and Engineering: A 2022, 144222
  7. J.K. Holmen, S. Thomesen, M.J. Perez-Martin, O.S. Hopperstad, T. Børvik. Ballistic Impact of Structural Steels at Low Temperatures. Journal of applied mechanics 2022; 89(10), 101001
  8. J. Hund, H.M. Granum, S.N. Olufsen, P.H. Holmström, J. Johnsen, A.H. Clausen. Impact of stress triaxiality, strain rate, and temperature on the mechanical response and morphology of PVDF. Polymer testing 2022; 114, 107717
  9. R. Kaufmann, E. Fagerholt, V. Aune. Surface Pressure Reconstruction in Shock Tube Tests Using the Virtual Fields Method. Proceedings of the 2021 Annual Conference on Experimental and Applied Mechanics, Springer 2022 pp. 23-28. 
  10. R. Kaufmann, S. Olufsen, E. Fagerholt, V. Aune. Reconstruction of surface pressures on flat plates impacted by blast waves using the Virtual Fields Method. International Journal of Impact Engineering 2022; 171: 104369.
  11. M. Mokhtari, E. Kim, J. Amdahl. Pressure-dependent plasticity models with convex yield loci for explicit ice crushing simulations. Marine Structures 2022; 84, 103233
  12. W. Nam, O.S. Hopperstad, J. Amdahl. Thermal analysis of marine structural steel EH36 subject to non-spreading cryogenic spills: Part III: structural response assessment. Ships and Offshore Structures (2022) 
  13. S.N. Olufsen, R. Kaufmann, E. Fagerholt, V. Aune. RECOLO: A Python package for the reconstruction of surface pressure loads from kinematic fields using the virtual fields method. Journal of Open Source Software (JOSS) 2022; 7, 71
  14. K. Qvale, S. Thomesen, O.S. Hopperstad, T. Børvik. The effect of constituent particles on the tear resistance of three 6000-series aluminium alloys. Int J Fract 238 (2022) 165–183.
  15. K. Somlo, K. Poulios, B.H. Frodal, C.V. Funch, G. Winther, O.S. Hopperstad, T. Børvik, C.F. Niordson. Anisotropic yield surfaces of additively manufactures metals simulated with crystal plasticity. European Journal of Mechanics - A/Solids 2022; 94, 104506
  16. T. Warren, J. Johnsen, M. Kristoffersen, T. Børvik. Solution for the Dynamic Elastically Compressible Power-Law Strain Hardening Cylindrical Cavity-Expansion Problem. Journal of Dynamic Behavior of Materials 2022
  17. J. Xu, B. Holmedal, O.S. Hopperstad, T. Manik, K. Marthinsen. Dynamic strain ageing in an AlMg alloy at different strain rates and temperatures: Experiments and constitutive modelling. International journal of plasticity 2022; 151, 103215
  18. J. Xu, L. Liu, O.S. Hopperstad, B. Holmedal, T. Manik, K. Marthinsen. A simple method enabling efficient quantitative analysis of the Portevin–Le Chatelier band characteristics. Scripta Materialia 2022; 222, 115027

2021

2021

  1. M. Kristoffersen, KO. Hauge, A. Minoretti, T. Børvik, Tore. Experimental and numerical studies of tubular concrete structures subjected to blast loading. Engineering structures 2021, Volume 233, 1-21
  2. M. Kristoffersen, OL. Toreskås, S. Dey, T. Børvik, Tore. Ballistic perforation resistance of thin concrete slabs impacted by ogive-nose steel projectiles. International Journal of Impact Engineering 2021, volume 156
  3. M. Mokhtari, W. Nam, J. Amdahl. Thermal analysis of marine structural steel EH36 subject to non-spreading cryogenic spills. Part II: finite element analysis. Ships and Offshore Structures 2021
  4. S.N. Olufsen, P. Nygård, C. Ines Teixeira Pais, G. Perillo, O.S. Hopperstad, A.H. Clausen. Influence of loading conditions on the tensile response of degraded polyamide 11. Polymer 2021, Volume 229.
  5. K. Osnes, J.K. Holmen, T.H. Grue, T. Børvik. Perforation of laminated glass: An experimental and numerical study. International Journal of Impact Engineering 2021, volume 156, 103922.
  6. M. Reil, D. Morin, M. Langseth, O. Knoll. A novel tests set-up for validation of connector models subjected to static and impact loadings. International Journal of Impact Engineering 2021, Volume 158
  7. O. Vestrum, M. Langseth, T. Børvik. Finite element analysis of porous polymer coated pipelines subjected to impact. International Journal of Impact Engineering 2021, Volume 152
  8. W. Nam, M. Mokhtari, J. Amdahl. Thermal analysis of marine structural steel EH36 subject to non-spreading cryogenic spills. Part I: experimental study. Ships and Offshore Structures 2021 pp 1-9
  9. V. Aune, G. Valsamos, F. Casadei, M. Langseth, T. Børvik. Fluid-structure interaction effects during the dynamic response of clamped thin steel plates exposed to blast loading. International Journal of Mechanical Sciences 2021, Volume 195.(106263) 
  10. S. Bergo, D. Morin, O.S. Hopperstad. Numerical implementation of a non-local GTN model for explicit FE simulation of ductile damage and fracture. International Journal of Solids and Structures 2021, Volume 219 - 220.pp. 134-150.
  11. M. Costas, M. Edwards-Mowforth, M. Kristoffersen, F. Teixeira-Dias, V. Brøtan, C.O. Paulsen, T. Børvik. Ballistic impact resistance of additive manufactured high-strength maraging steel: An experimental study. International Journal of Protective Structures 2021
  12. M. Costas, D. Morin, J.K. Sønstabø, M. Langseth. On the effect of pilot holes on the mechanical behaviour of flow-drill screw joints. Experimental tests and mesoscale numerical simulations. Journal of Materials Processing Technology 2021, Volume 294.
  13. P.H. Holmström, A.H. Clausen, T. Berstad, D. Morin, O.S. Hopperstad. A pragmatic orthotropic elasticity-based damage model with spatially distributed properties applied to short glass-fibre reinforced polymers. International Journal of Solids and Structures 2021, Volume 230-231.
  14. H. Johannessen, O.H. Johannessen, M. Costas, A.H. Clausen, J.K. Sønstabø. Experimental and numerical study of notched SHS made of different S355 steels. Journal of constructional steel research 2021, Volume 182.
  15. I.G. Ringdalen, I.J.T. Jensen, C.D. Marioara, J. Friis. The Role of Grain Boundary Precipitates during Intergranular Fracture in 6xxx Series Aluminium Alloys. Metals 2021.
  16. J. Xu, B. Holmedal, O.S. Hopperstad, K. Marthinsen. Experimental Characterization and Modelling of the PLC Effect in an AlMg-Alloy. Materials Science Forum 2021, Volume 1016 pp 188-193.


 

2020

2020

  1. B.C. Abrahamsen, H.S. Alsos, V. Aune, Vegard, E. Fagerholt, O.M. Faltinsen, Ø. Hellan. Hydroplastic response of a square plate due to impact on calm water. Physics of Fluids 2020; Volume 32(8) 082103.
  2. S. Bergo, D. Morin, T. Børvik, Tore, O.S. Hopperstad. Micromechanics-based identification of a ductile fracture model for three structural steels. Engineering Fracture Mechanics 2020; Volume 224, 106803.
  3. K.A. Brekken, Aa.G. Reyes, T. Berstad, M. Langseth, T. Børvik. Sandwich panels with polymeric foam cores exposed to blast loading: An experimental and numerical investigation. Applied Sciences 2020; Volume 10(24), 1-36.
  4. E. Christiansen, C.D. Marioara, I.G. Ringdalen, R. Bjørge, Ruben, B. Holmedal, O.S. Hopperstad, R. Holmestad. Detailed investigation of the shearing mechanism of β" precipitates in Al-Mg-Si alloys. MATEC Web of Conferences 2020; Volume 326, 01005.
  5. E. Christiansen, I.G. Ringdalen, R. Bjørge, Ruben, C.D. Marioara, R. Holmestad. Multislice image simulations of sheared needle‐like precipitates in an Al‐Mg‐Si alloy. Journal of Microscopy 2020; Volume 279, issue 3, 265-273.
  6. M. Costas, D. Morin, David, M. de Lucio, M. Langseth. Testing and simulation of additively manufactured AlSi10Mg components under quasi-static loading. European Journal of Mechanics. A, Solids 2020; Volume 81. 103966.
  7. M. Costas, D. Morin, O.S. Hopperstad, T. Børvik, M. Langseth. Corrigendum to “A through-thickness damage regularisation scheme for shell elements subjected to severe bending and membrane deformations” [Journal of the Mechanics and Physics of Solids 123 (2019) 190–206]. Journal of the mechanics and physics of solids 2020; Volume 135.
  8. B. Erice, M.J. Perez-Martin, M. Kristoffersen, D. Morin, David, T. Børvik, O.S. Hopperstad. Fracture mechanisms in largely strained solids due to surface instabilities. International Journal of Solids and Structures 2020; Volume 199, 190-202.
  9. J. Frafjord, S. Dumoulin, S. Wenner, I.G. Ringdalen, R. Holmestad, Randi, J. Friis. Fully resolved strain field of the β’’ precipitate calculated by density functional theory. Computational Materials Science 2020; Volume 187, 110054.
  10.  J. Frafjord, I.G. Ringdalen, O.S. Hopperstad, R. Holmestad, J. Friis. First principle calculations of pressure dependent yielding in solute strengthened aluminium alloys. Computational materials science 2020; Volume 184, 109902.
  11. B.H. Frodal, E. Christiansen, O.R. Myhr, O.S. Hopperstad. The role of quench rate on the plastic flow and fracture of three aluminium alloys with different grain structure and texture. International Journal of Engineering Science 2020; Volume 150, 103257.
  12. B.H. Frodal, D. Morin, T. Børvik O.S. Hopperstad. On the effect of plastic anisotropy, strength and work hardening on the tensile ductility of aluminium alloys. International Journal of Solids and Structures 2020; Volume 188-189, 118-132.
  13. M. Gazizov, D.C. Marioara, J. Friis, S. Wenner, R. Holmestad, R. Kaibyshev. Unique hybrid precipitate structures forming in an Al–Cu–Mg–Si alloy. Journal of Alloys and Compounds 2020; Volume 826, 153977.
  14. P. Holmström, O.S. Hopperstad, A.H. Clausen. Anisotropic behavior of short glass-fibre reinforced polyamide-6. Composites Part C: Open Access 2 (2020), 100019.
  15. M. Kristoffersen, M. Costas, T. Koenis, V. Brøtan, C.O. Paulsen, T. Børvik. On the ballistic perforation resistance of additive manufactured AlSi10Mg aluminium plates. International Journal of Impact Engineering 137 (2020) 103476.
  16. D.T. Morton, Aa.G.R. Reyes, A.H. Clausen, O.S. Hopperstad. Mechanical response of low density expanded polypropylene foams in compression and tension at different loading rates and temperatures. Materials Today Communications 2020; Volume 23, 100917.
  17. A. Muñoz-Ibáñez, J. Delgado-Martín, M. Costas, J. Rabuñal-Dopico, J. Alvarellos-Iglesias, J Canal-Vila. Pure Mode I Fracture Toughness Determination in Rocks Using a Pseudo Compact Tension (pCT) Test Approach. Rock Mechanics and Rock Engineering 2020; Volume 53, 3267-3285.
  18. S.N. Olufsen, M.E. Andersen, E. Fagerholt. μDIC: An open-source toolkit for digital image correlation. SoftwareX 2020; Volume 11, 100391.
  19. S.N. Olufsen, A.H. Clausen, D.W. Breiby, O.S. Hopperstad. X-ray computed tomography investigation of dilation of mineral-filled PVC under monotonic loading. Mechanics of materials 2020; Volume 142, 103295.
  20. S.N. Olufsen, K.R. Tekseth, D.W. Breiby, A.H. Clausen, Arild Holm, O.S. Hopperstad. A technique for in situ X-ray computed tomography of deformation-induced cavitation in thermoplastics. Polymer testing 2020; Volume 91, 106834.
  21. K. Osnes, O.S. Hopperstad, T. Børvik. Rate dependent fracture of monolithic and laminated glass: Experiments and simulations. Engineering structures 2020; Volume 212, 110516.
  22. C.O. Paulsen, T. Børvik, I. Westermann. Effect of the gold remodeling preparation method on the microstructure and mechanical behavior of steel. SN Applied Sciences 2020; Volume 2 (1751).
  23. J. Paz, M. Costas, J. Delgado, L.E. Romera, J. Diaz. Energy Absorption of Aluminium Extrusions Filled with Cellular Materials Under Axial Crushing: Study of the Interaction Effect. Applied Sciences 2020; Volume 10(23) 8510.
  24. O. Vestrum, L.E. Dæhli, O.S. Hopperstad, T. Børvik. Constitutive modeling of a graded porous polymer based on X-ray computed tomography. Materials and Design 188 (2020) 108449.

2019

2019

 

 

 

 

 

 

Annual report 2019

  1. M.E. Andersen, O.S. Hopperstad, A.H. Clausen. Volumetric strain measurement of polymeric materials subjected to uniaxial tension. Strain 55(4) (2019).
  2. J.F. Berntsen, D. Morin, A.H. Clausen, M. Langseth. Experimental investigation and numerical modelling of the mechanical response of a semi-structural polyurethane adhesive. International Journal of Adhesion and Adhesives 95 (2019) 102395.
  3. E. Christiansen, C.D. Marioara, B. Holmedal, O.S. Hopperstad, R. Holmestad. Nano-scale characterisation of sheared β” precipitates in a deformed Al-Mg-Si alloy. Scientific Reports 9 (2019) 17446.
  4. M. Costas, D. Morin, O.S. Hopperstad, T. Børvik, M. Langseth. A through-thickness damage regularisation scheme for shell elements subjected to severe bending and membrane deformations. Journal of the mechanics and physics of solids 123 (2019) 190-206.
  5. S. Dumoulin, T. Coudert, O.S. Hopperstad. ATLAS of yield surfaces for strongly textured FCC polycrystals. AIP Conference Proceedings 2113 (2019) 180008.
  6. B.H. Frodal, L.E. Dæhli, T. Børvik, O.S. Hopperstad. Modelling and simulation of ductile failure in textured aluminium alloys subjected to compression-tension loading. International journal of plasticity 118 (2019) 36-69.
  7. M. Kristoffersen, A. Minoretti, T. Børvik. On the internal blast loading of submerged floating tunnels in concrete with circular and rectangular cross-sections. Engineering Failure Analysis 103 (2019) 462-480.
  8. D. Morin, L.E. Dæhli, T. Børvik, A. Benallal, O.S. Hopperstad. Numerical study of ductile failure under non-proportional loading. European Journal of Mechanics. A, Solids 74 (2019) 221-241.
  9. S.N. Olufsen. AXITOM: A Python package for reconstruction of axisymmetric tomograms acquired by a conical beam. Journal of Open Source Software 4(42) (2019) 1704.
  10. S.N. Olufsen, A.H. Clausen, O.S. Hopperstad. Influence of stress triaxiality and strain rate on stress-strain behaviour and dilation of mineral-filled PVC. Polymer testing 75 (2019) 350-357.
  11. K. Osnes, S. Dey, O.S. Hopperstad, T. Børvik. On the dynamic response of laminated glass exposed to impact before blast loading. Experimental mechanics 57(7) (2019) 1033-1046.
  12. K. Osnes, J.K. Holmen, O.S. Hopperstad, T. Børvik. Fracture and fragmentation of blast-loaded laminated glass: An experimental and numerical study. International Journal of Impact Engineering 132 (2019) 132, 1-17.
  13. M.J. Perez-Martin, J.K. Holmen, S. Thomesen, O.S. Hopperstad, T. Børvik. Dynamic Behaviour of a High-Strength Structural Steel at Low Temperatures. Journal of Dynamic Behavior of Materials 5(3) (2019) 241-250.
  14. Aa. Reyes, T. Børvik. Low velocity impact on crash components with steel skins and polymer foam cores. International Journal of Impact Engineering 132 (2019) 103297.
  15. J.K. Sunde, E. Christiansen, E. Thronsen, S. Wenner, C.D. Marioara, S. Van Helvoort, R. Holmestad. Scanning Precession Electron Diffraction to aid Aluminum Alloy Development. Microscopy and Microanalysis 25 (2) (2019) 1920-1921.
  16. O. Vestrum, M. Langseth, T. Børvik. Finite element modeling of porous polymer pipeline coating using X-ray micro computed tomography. Composites Part B: Engineering 172 (2019) 406-415.

2018

2018

  1. V. Aune, F. Casadei, G. Valsasmos, M. Langseth, T. Børvik. A Shock Tube Used to Study the Dynamic Response of Blast-Loaded Plates. Proceedings 2(8) (2018), 503. 
  2. E. Christiansen, C.D. Marioara, K. Marthinsen, O.S. Hopperstad, R. Holmestad. Lattice rotations in precipitate free zones in an Al-Mg-Si alloy. Materials Characterization 144 (2018), 522-531.
  3. M. Costas, D. Morin, O.S. Hopperstad, T. Børvik, M. Langseth. A through-thickness damage regularisation scheme for shell elements subjected to severe bending and membrane deformations. Journal of the mechanics and physics of solids 123 (2019) 190-206. 
  4. L. E. Dæhli, D. Morin, T. Børvik, O.S. Hopperstad. A Lode-dependent Gurson model motivated by unit cell analyses. Engineering Fracture Mechanics 190 (2018), 299-318. 
  5. J. Johnsen, J.K. Holmen, T.L. Warren, T. Børvik. Cylindrical cavity expansion approximations using different constitutive models for the target material. International Journal of Protective Structures 9(2) (2018), 199-225. 
  6. M. Kristoffersen, M. Langseth, T. Børvik. Combined three-point bending and axial tension of pressurised and unpressurised X65 offshore steel pipes – Experiments and simulations. Marine Structures 61 (2018), 560-577.  
  7. M. Kristoffersen, J.E. Pettersen, V. Aune, T. Børvik. Experimental and numerical studies on the structural response of normal strength concrete slabs subjected to blast loading. Engineering structures 174 (2018), 242-255. 
  8. M. Kristoffersen, K.O. Hauge, T. Børvik. Blast loading of concrete pipes using C-4 charges. Proceedings 2(8) (2018), 428. 
  9. D. Morin, O.S. Hopperstad, A. Benallal. On the description of ductile fracture in metals by the strain localization theory. International Journal of Fracture 1-2 (2018), 27-51. *
  10. D. Morin, M. Fourmeau, T. Børvik, A. Benallal, O.S. Hopperstad. Anisotropic tensile failure of metals by the strain localization theory: An application to a high-strength aluminium alloy. European journal of mechanics. A, Solids 69 (2018) 99-112. *
  11. O.R. Myhr, O.S. Hopperstad, T. Børvik. A Combined Precipitation, Yield Stress, and Work Hardening Model for Al-Mg-Si Alloys Incorporating the Effects of Strain Rate and Temperature. Metallurgical and Materials Transactions. A 49A (2018), 3592-3609. 
  12. R.R. Neves, H. Fransplass, M. Langseth, L. Driemeier, M. Alves. Performance of Some Basic Types of Road Barriers Subjected to the Collision of a Light Vehicle. Journal of the Brazilian Society of Mechanical Sciences and Engineering 10:274 (2018). 
  13. K. Osnes, T. Børvik, O.S. Hopperstad. Testing and modelling of annealed float glass under quasi-static and dynamic loading. Engineering Fracture Mechanics 201 (2018), 107-129. 
  14. K. Osnes, O.S. Hopperstad, T. Børvik. Quasi-Static and Dynamic Testing of Annealed Float Glass. Proceedings 2 (2018). 
  15. Aa. Reyes, T. Børvik. Quasi-static behaviour of crash components with steel skins and polymer foam cores. Materials Today Communications 17 (2018), 541-553. 
  16. J.K. Sønstabø, D. Morin, M. Langseth. Testing and modelling of flow-drill screw connections under quasi-static loading. Journal of Materials Processing Technology 255 (2018), 724-738. 
  17. J.K. Sønstabø, D. Morin, M. Langseth. Static and dynamic testing and modelling of aluminium joints with flow-drill screw connections. International Journal of Impact Engineering 115 (2018), 58-75. 
  18. O. Vestrum, M. Kristoffersen, M. Polanco-Loria, H. Ilstad, M. Langseth, T. Børvik. Quasi-static and dynamic indentation of offshore pipelines with and without multi-layer polymeric coating. Marine Structures 62 (2018), 60-76.

*Funding from CASA and concurrent project FractAl

2017

2017

  1. V. Aune, G. Valsamos, F. Casadei, M. Larcher, M. Langseth, T. Børvik. Numerical study on the structural response of blast-loaded thin aluminium and steel plates. International Journal of Impact Engineering 99 (2017) 131–144. 
  2. V. Aune, G. Valsamos, F. Casadei, M. Larcher, M. Langseth, T. Børvik. Use of damage-based mesh adaptivity to predict ductile failure in blast-loaded aluminium plates. Procedia Engineering 197 (2017) 3-12. 
  3. V. Aune, G. Valsamos, F. Casadei, M. Langseth, T. Børvik. On the dynamic response of blast-loaded steel plates with and without pre-formed holes. International Journal of Impact Engineering 108 (2017) 27–46. 
  4. M. Costas, D. Morin, M. Langseth, J. Diaz, L. Romera. Static crushing of aluminium tubes filled with PET foam and a GFRP skeleton. Numerical modelling and multiobjective optimization. International Journal of Mechanical Sciences 131-132 (2017) 205-217. 
  5. L.E.B. Dæhli, J. Faleskog, T. Børvik, O.S. Hopperstad. Unit cell simulations and porous plasticity modelling for strongly anisotropic FCC metals. European Journal of Mechanics A/ Solids. Volume 65 (2017) 360-383. 
  6. L.E.B. Dæhli, D. Morin,  T. Børvik,  O.S. Hopperstad. Influence of yield surface curvature on the macroscopic yielding and ductile failure of isotropic porous plastic materials. Journal of the Mechanics and Physics of Solids 107 (2017) 253-283. 
  7. B.H. Frodal, K.O. Pedersen, T. Børvik, O.S. Hopperstad. Influence of pre-compression on the ductility of AA6xxx aluminium alloys. International Journal of Fracture 206 (2017) 131-149. 
  8. E.L. Grimsmo, L.E. Bryhni Dæhli, O.S. Hopperstad, A. Aalberg, M. Langseth, A.H. Clausen. Comparison of damage models in numerical simulations of fillet welds under quasi-static and impact loading. Procedia Engineering 197 ( 2017 ) 79–88. 
  9. E.L. Grimsmo,  L.E.B. Dæhli,  O.S. Hopperstad,  A. Aalberg,  M. Langseth,  A.H. Clausen. Numerical study of fillet welds subjected to quasi-static and impact loading. International Journal of Mechanical Sciences 131-132 (2017) 1092-1105. 
  10. E.L. Grimsmo, A.H. Clausen, A. Aalberg, M. Langseth. Fillet welds subjected to impact loading – an experimental study. International Journal of Impact Engineering 108 (2017) 101-113.
  11. E.L. Grimsmo, A. Aalberg, M. Langseth, Arild H. Clausen. How placement of nut determines failure mode of bolt-and-nut assemblies. Steel Construction 10 (2017). 
  12. G. Gruben, D. Morin, M. Langseth, O.S. Hopperstad. Strain localization and ductile fracture in advanced high-strength steel sheets. European Journal of Mechanics A/Solids 61 (2017) 315-329. 
  13. G. Gruben, D. Morin, M. Langseth, O.S. Hopperstad. Ductile fracture of steel sheets under dynamic membrane loading. Procedia Engineering 197 (2017) 185–195. 
  14. G. Gruben, S. Sølvernes, T. Berstad, D. Morin, O. S. Hopperstad, M. Langseth: Low-velocity impact behaviour and failure of stiffened steel plates. Marine Structures 54 (2017) 73–91. 
  15. J.K. Holmen, L. Olovsson, T. Børvik. Discrete modeling of low-velocity penetration in sand. Computers and Geotechnics 86 (2017) 21–32. 
  16. J.K. Holmen, O.S. Hopperstad, T. Børvik. Influence of yield-surface shape in simulation of ballistic impact. International Journal of Impact Engineering 108 (2017) 136-146. 
  17. J. K. Holmen, J.K. Solberg, O.S. Hopperstad, T. Børvik. Ballistic impact of layered and case-hardened steel plates. International Journal of Impact Engineering 110 (2017) 4-14. 
  18. J.K. Holmen, B.H. Frodal, O.S. Hopperstad, T. Børvik. Strength differential effect in age hardened aluminum alloys. International Journal of Plasticity 99 (2017) 144-161. 
  19. J.K. Holmen, T. Børvik, O.S. Hopperstad. Experiments and simulations of empty and sand-filled aluminium alloy panels subjected to ballistic impact. Engineering Structures 130 (2017) 216–228. 
  20. A. Ilseng, B.H. Skallerud, A.H. Clausen. Volume growth during uniaxial tension of particle-filled elastomers at various temperatures –Experiments and modelling. Journal of the mechanics and physics of solids 107 (2017) 33-48. 
  21. A. Ilseng, B.H. Skallerud, A.H. Clausen. An experimental and numerical study on the volume change of particle-filled elastomers in various loading modes. Mechanics of Materials 106 (44-57) 2017. 
  22. J. Johnsen, J.K. Holmen, T.L. Warren, T. Børvik. Cylindrical cavity expansion approximations using different constitutive models for the target material. International Journal of Protective Structures (2017) 204141961774132. 
  23. D. Morin, B.L. Kaarstad, B. Skajaa, O.S. Hopperstad, M. Langseth. Testing and modelling of stiffened aluminium panels subjected to quasi-static and low velocity impact loading. International Journal of Impact Engineering 110 (2017) 97-111. 
  24. M.S. Remøe, K. Marthinsen, I. Westermann, K.O. Pedersen, J. Røyset, C.D. Marioara. The effect of alloying elements on the ductility of Al-Mg-Si alloys. Materials Science & Engineering: A 693 (2017) 60-72. 
  25. D. Vysochinskiy, T. Coudert, O.S. Hopperstad, O.-G. Lademo, A. Reyes. Experimental study on the formability of AA6016 sheets pre-strained by rolling. International Journal of Material Forming (2017) 1-17. 

2016

2016

  1. V. Aune, E. Fagerholt, K.O. Hauge, M. Langseth, T. Børvik. Experimental study on the response of thin aluminium and steel plates subjected to airblast loading. International Journal of Impact Engineering 90 (2016) 106-121. 
  2. V. Aune, E. Fagerholt, M. Langseth, T. Børvik. A shock tube facility to generate blast loading on structures. International Journal of Protective Structures 7(3) (2016) 340-366.
  3. T. Børvik, L.A. Marken, M. Langseth, O.S. Hopperstad, G. Rørvik. Influence of sigma-phase precipitation on the impact behaviour of duplex stainless steel pipe fittings. Ships and Offshore Structures 11 (2016) 25-37. 
  4. M. Costas, D. Morin, M. Langseth, L. Romera, J. Díaz. Axial crushing of aluminum extrusions filled with PET foam and GFRP. An experimental investigation. Thin-Walled Structures 99 (2016) 45-57.
  5. L.E.B. Bryhni Dæhli, T. Børvik, O.S. Hopperstad. Influence of loading path on ductile fracture of tensile specimens made from aluminium alloys. International Journal of Solids and Structures 88-89 (2016) 17-34. 
  6. L.E.B. Dæhli, J. Faleskog, T. Børvik, O.S. Hopperstad. Unit cell simulations and porous plasticity modelling for recrystallization textures in aluminium alloys. Procedia Structural Integrity 2 (2016) 2535-2542 
  7. E.L. Grimsmo, A. Aalberg, M. Langseth, A.H. Clausen. Failure modes of bolt and nut assemblies under tensile loading. Journal of Constructional Steel Research 126 (2016) 15-25. 
  8. E.L. Grimsmo, A.H. Clausen, A. Aalberg, M. Langseth. A numerical study of beam-to-column joints subjected to impact. Engineering Structures 120 (2016) 103-115. 
  9. G. Gruben, M. Langseth, E. Fagerholt, O.S. Hopperstad. Low-velocity impact on high-strength steel sheets: An experimental and numerical study. International Journal of Impact Engineering 88 (2016) 153-171. 
  10. M. Helbig, E. Van Der Giessen, A.H. Clausen, T. Seelig. Continuum-micromechanical modeling of distributed crazing in rubber-toughened polymers. European Journal of Mechanics – A/Solids 57 (2016) 108-120. 
  11. J.K. Holmen, J. Johnsen, O.S. Hopperstad, T. Børvik. Influence of fragmentation on the capacity of aluminum alloys subjected to ballistic impact. European Journal of Mechanics – A/Solids 55 (2016) 221-233.
  12. J.K. Holmen, L.E.B. Dæhli, O.S. Hopperstad, T. Børvik. Prediction of ductile failure using a phenomenological model calibrated from micromechanical simulations. Procedia Structural Integrity 2 (2016) 2543–2549. 
  13. A. Ilseng, B.H. Skallerud, A.H. Clausen. Tension behaviour of HNBR and FKM elastomers for a wide range of temperatures. Polymer Testing 49 (2016) 128-136. 
  14. M. Khadyko, S. Dumoulin, O.S. Hopperstad. Texture gradients and strain localisation in extruded aluminium profile. International Journal of Solids and Structures 97 (2016) 239-255. 
  15. M. Khadyko, S. Dumoulin, G. Cailletaud, O.S. Hopperstad. Latent hardening and plastic anisotropy evolution in AA6060 aluminium alloy. International Journal of Plasticity 76 (2016) 51-74. 
  16. M. Kristoffersen, T. Børvik, M. Langseth, O.S. Hopperstad. Dynamic versus quasi-static loading of X65 steel pipes. European Physical Journal, 225(2) (2016) 325-334.  
  17. M. Kristoffersen, T. Børvik, O.S. Hopperstad. Using unit cell simulations to investigate fracture due to compression-tension loading. Engineering Fracture Mechanics 162 (2016) 269-289. 
  18. A. Saai, I. Westermann, S. Dumoulin, O.S. Hopperstad. Crystal plasticity finite element simulations of pure bending of aluminium alloy AA7108. International Journal of Material Forming (2016), (9(4)), 457-469.
  19. J.K. Sønstabø, D. Morin, M. Langseth. Macroscopic modelling of flow-drill screw connections in thin-walled aluminium structures. Thin-Walled Structures 105 (2016) 185–206. 
  20. V. Vilamosa, A.H. Clausen, T. Børvik, S.E. Skjervold, O.S. Hopperstad. A physically-based constitutive model applied to AA6082 aluminium alloy at large strains, high strain rates and elevated temperatures. Materials and Design 103 (2016) 391-405. 
  21. D. Vysochinskiy, T. Coudert, O.S. Hopperstad, O.G. Lademo, A. Reyes. Experimental detection of forming limit strains on samples with multiple local necks. Journal of Materials Processing Technology 227 (2016) 216-26. 
  22. I. Westermann, K.O. Pedersen, T. Børvik, O.S. Hopperstad. Work-hardening and ductility of artificially aged AA6060 aluminium alloy. Mechanics of Materials 97 (2016) 100–117. 

2015

2015

  1. V. Aune, T. Børvik, M. Langseth. Behaviour of plated structures subjected to blast loading. Proceedings of the XI International Congress on the Mechanical and Physical Behaviour of Materials under Dynamic Loading (DYMAT), European Physical Journal – Web of Conference 94, 01015 (2015).
  2. T. Børvik, S. Dey, L. Olovsson Penetration of granular materials by small-arms bullets. International Journal of Impact Engineering 75 (2015) 123-139.
  3. M. Fourmeau, C.D. Marioara, T. Børvik, A. Benallal, O.S. Hopperstad. A study of the influence 0f precipitate free zones on the strain localization and failure of the aluminium alloy AA7075-T651. Philosophical Magazine (2015).
  4. H. Fransplass, M. Langseth, O.S. Hopperstad. Experimental and numerical study of threaded steel fasteners under combined tension and shear at elevated loading rates. International Journal of Impact Engineering 76 (2015) 118–125.
  5. E.L. Grimsmo, A.H. Clausen, M. Langseth, A. Aalberg. An experimental study of static and dynamic behaviour of bolted end-plate joints of steel. International Journal of Impact Engineering, 85 (2015) 132–145.
  6. N.-H. Hoang, O.S. Hopperstad, O.R. Myhr, M. Langseth, C. Marioara. An improved nano-scale material model applied in axial-crushing analyses of square hollow section aluminium profiles. Thin-Walled Structures 92 (2015) 93–103.
  7. J.K. Holmen, T. Børvik, O.R. Myhr, H.G. Fjær, O.S. Hopperstad. Perforation of welded aluminum components: microstructurebased modelling and experimental validation. International Journal of Impact Engineering 84 (2015) 96–107.
  8. J.K. Holmen, O.S. Hopperstad, T. Børvik. Low-velocity impact on multi-layered dual-phase steel plates. International Journal of Impact Engineering 78 (2015) 161–177.
  9. M. Khadyko, S. Dumoulin, T. Børvik, O.S. Hopperstad. Simulation of large-strain behaviour of aluminium alloy under tensile loading using anisotropic plasticity models. Computers & Structures, 157 (2015) 60-75.
  10. T. Mánik, B. Holmedal, O.S. Hopperstad. Strain-path change induced transients in flow stress, work hardening and r-values in aluminum. International Journal of Plasticity 69 (2015) 1–20.
  11. K.O. Pedersen, I. Westermann, T. Furu, T. Børvik, O.S. Hopperstad. Influence of microstructure on work-hardening and ductile fracture of aluminium alloys. Materials and Design 70 (2015) 31–44.
  12. A. Saai, I. Westermann, S. Dumoulin, O.S. Hopperstad. Crystal plasticity finite element simulations of pure bending of aluminium alloy AA7108. International Journal of Material Forming (2015).
  13. M. Storheim, H.S. Alsos, O.S. Hopperstad, J. Amdahl. A damage-based failure model for coarsely meshed shell structures. International Journal of Impact Engineering 83 (2015) 59–75.
  14. J.K. Sønstabø, P.H. Holmstrøm, D. Morin, M. Langseth. Macroscopic strength and failure properties of flow-drill screw connections. Journal of Materials Processing Technology 222 (2015) 1-12.
  15. V. Vilamosa, A.H. Clausen, T. Børvik, S. R. Skjervold, O.S. Hopperstad. Behaviour of Al-Mg-Si aluminium alloys under a wide range of temperatures and strain rates. International Journal of Impact Engineering 86 (2015) 223-239. 
  16. K. Zhang, B. Holmedal, O.S. Hopperstad, S. Dumoulin, J. Gawad, A. Van Bael, P. Van Houtte. Multi-level modelling of mechanical anisotropy of commercial pure aluminium plate: Crystal plasticity models, advanced yield functions and parameter identification. International Journal of Plasticity 66 (2015) 3–30.