• A numerical study of beam-to-column joints subjected to impact 

      Grimsmo, Erik Løhre; Clausen, Arild Holm; Aalberg, Arne; Langseth, Magnus (Journal article; Peer reviewed, 2016)
      Limited documentation is concerned with the behaviour of steel joints subjected to severe impulsive loading originating from incidents such as explosions or impact. In this paper, finite element simulations are used to ...
    • A physically-based constitutive model applied to AA6082 aluminium alloy at large strains, high strain rates and elevated temperatures 

      Vilamosa, Vincent; Clausen, Arild Holm; Børvik, Tore; Holmedal, Bjørn; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2016)
      This paper presents a physically-based constitutive model applied to an AA6082 aluminium alloy subjected to large strains, high strain rates and elevated temperatures. The model accounts for thermo-elasticity, thermo-vis ...
    • A thermo-elasto-viscoplastic constitutive model for polymers 

      Johnsen, Joakim; Clausen, Arild Holm; Grytten, Frode; Benallal, Ahmed; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2018)
      In this study, a thermo-elasto-viscoplastic model is developed for a low density cross-linked polyethylene (XLPE) in an attempt to describe the combined effects of temperature and strain rate on the stress-strain response ...
    • An Experimental and Numerical Study of Thermoplastics at Large Deformations 

      Andersen, Marius (Doctoral thesis at NTNU;2016:191, Doctoral thesis, 2016)
      This thesis has examined the mechanical behavior of HDPE and PVC at large strains and at low to intermediate strain rates. This examination has been done by analyzing experimental results from uniaxial tension and ...
    • An experimental and numerical study on the volume change of particle-filled elastomers in various loading modes 

      Ilseng, Arne; Skallerud, Bjørn Helge; Clausen, Arild Holm (Journal article; Peer reviewed, 2017)
      Laboratory tests show that there is a pronounced difference in the volumetric response between uniaxial tension and confined axial compression loading for commercial particle-filled hydrogenated nitrile butadiene rubber ...
    • An experimental study of static and dynamic behaviour of bolted end-plate joints of steel 

      Grimsmo, Erik Løhre; Clausen, Arild Holm; Langseth, Magnus; Aalberg, Arne (Journal article; Peer reviewed, 2015)
      Many actions, such as accidental or malicious explosions, may impose high loading rates to structural frames. To enhance the knowledge of the behaviour of joints subjected to severe impulsive loading, a double-sided ...
    • Beam - Column Connections Subjected to Static and Dynamic Loading 

      Frich, Herman (Master thesis, 2014)
      Bolted beam-column connections are commonly used in office buildings and off-shore platforms in Norway. The use of pre-fabricated components in frame structures is popular due to the cost effective and quick erection of ...
    • Behavior and modeling of injection molded PP 

      Røstum, Heine Havneraas (Master thesis, 2014)
      The structural impact laboratory (SIMLab) at NTNU have developed a constitutive material modelto represent the behavior of brittle and ductile polymeric materials. The material model can be implementedinto finite element ...
    • Behavior of Aluminum at Elevated Strain Rates and Temperatures 

      Semb, Eivind (Master thesis, 2013)
      This thesis explores the thermomechanical behavior of aluminum. Experimental work has been conducted for a wide range of temperatures and strain rates for three AA6060 alloys in both quasi-static and split-Hopkinson tension ...
    • Behavior of PVC and HDPE under highly triaxial stress states: An experimental and numerical study 

      Ognedal, Anne Serine; Clausen, Arild Holm; Dahlen, Anfrid; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2014)
      This paper addresses the deformation of axisymmetric tensile bars, made of mineral-filled PVC and HDPE, with and without pre-machined notch. The purpose of the study is both to investigate the mechanical behavior under ...
    • Behaviour and Modelling of Fibre-Reinforced Polymers 

      Amundsen, Anne Helland (Master thesis, 2014)
      This thesis evaluates the behaviour of polypropylene (PP) and glass fibre reinforced polypropylene with a glass fibre content of10% and 30% by weight. Reinforcement materials are added to plastics to improve their mechanical ...
    • Behaviour and modelling of TPU 

      Boger, Beate (Master thesis, 2016)
      In towed marine seismic, a spread of sources and receivers behind a purpose made acquisition vessel are used to conduct seismic surveys. The receivers are grouped in streamers, each of length up to 12-14 km. The active ...
    • Behaviour of Al-Mg-Si alloys at a wide range of temperatures and strain rates 

      Vilamosa, Vincent; Clausen, Arild Holm; Børvik, Tore; Skjervold, SR; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2015)
      The thermo-mechanical behaviour in tension of three as-cast and homogenized Al-Mg-Si alloys, distinguished by their Mg and Si content, was investigated at a wide range of strains (the entire deformation process up to ...
    • Bio-inspired Composites, a de novo Approach to the Conceptualization, Design and Synthesis of Tough Mesoscale Structures with Simple Building Blocks 

      Dimas, Leon Sokratis Schei (Master thesis, 2013)
      Composites play an important role as structural materials in a range of engineering fields due to their potential to combine the best mechanical properties of their constituents. In biology, composites are ubiquitous and ...
    • Bjelke-søyle-forbindelser påkjent av statisk og dynamisk last 

      Båsen, Gjermund; Nordgård, Torger (Master thesis, 2014)
      Denne rapporten undersøker responsen av en tosidig bjelke-søyle-forbindelse utsatt for kvasi-statisk og dynamisk belastning. For kvasi-statisk respons av knutepunkt foreligger det endel tidligere arbeid, men det finnes ...
    • Brannteknisk utbedring av takkonstruksjon 

      Holtet, Ole Jansen (Master thesis, 2014)
      I en 3-etasjes bygård på Grünerløkka i Oslo skal et uisolert loftsrom innredes og tas i bruk som to selvstendige leiligheter. Ytterveggene er av teglstein, mens etasjeskillere og takkonstruksjonen er av treverk. Ved permanent ...
    • Cold impact performance of polypropylene (PP) 

      Schwenke, Einar (Master thesis, 2017)
      In this thesis, the ability of the SIMLab polymer model to represent the material behaviour of polypropylene used in the Toyota Yaris door trim, under impact loading, has been investigated. The overall goal was to attempt ...
    • Cold impact performance of polypropylene (PP) - Oppførsel av støtpåkjent PP ved lav temperatur 

      Skjennum, Jørgen Gudbrand Frøyland; Engebakken, Anders (Master thesis, 2018)
      When Toyota develop new polymer components for their vehicles, experimental drop tests are conducted at -30 °C to evaluate the cold impact performance of the parts. The objective of this thesis is to replicate the behaviour ...
    • Continuum-micromechanical modeling of distributed crazing in rubber-toughened polymers 

      Helbig, Martin; Van Der Giessen, Erik; Clausen, Arild Holm; Seelig, Thomas (Journal article; Peer reviewed, 2016)
      A micromechanics based constitutive model is developed that focuses on the effect of distributed crazing in the overall inelastic deformation behavior of rubber-toughened ABS (acrylonitrile-butadiene-styrene) materials. ...
    • Design of Suspension Towers for Transmission Lines 

      Engebrethsen, Katrine (Master thesis, 2017)
      This thesis is concerned with the design and analysis of suspension towers for transmission lines. Three different portal tower designs are considered; one steel lattice tower, one steel tubular tower and one less conventional ...