Blar i NTNU Open på forfatter "Langseth, Magnus"

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    • Finite element analysis of porous polymer coated pipelines subjected to impact 

      Vestrum, Ole; Langseth, Magnus; Børvik, Tore (Peer reviewed; Journal article, 2021)
      Subsea steel pipelines are often coated with external polymer coatings. While primarily applied for corrosion protection and thermal insulation, such coatings have been shown to contribute significantly to the energy ...

    • Finite element modeling of porous polymer pipeline coating using X-ray micro computed tomography 

      Vestrum, Ole; Langseth, Magnus; Børvik, Tore (Journal article; Peer reviewed, 2019)
      Offshore pipelines are designed to sustain impact from fish trawl equipment and anchors, but due to component complexity, insulating coating solutions are often neglected in mechanical capacity estimates. In this work, ...

    • Fluid-structure interaction effects during the dynamic response of clamped thin steel plates exposed to blast loading 

      Aune, Vegard; Valsamos, Georgios; Casadei, Folco; Langseth, Magnus; Børvik, Tore (Peer reviewed; Journal article, 2021)
      This work presents results from a numerical investigation on the influence of fluid-structure interaction (FSI) on the dynamic response of thin steel plates subjected to blast loading. The loading was generated by a shock ...

    • How placement of nut determines failure mode of bolt-and-nut assemblies 

      Grimsmo, Erik Løhre; Aalberg, Arne; Langseth, Magnus; Clausen, Arild Holm (Journal article; Peer reviewed, 2017)
      Bolt-and-nut assemblies under tension loading can either fail by bolt fracture or thread failure. The latter failure mode is arguably undesirable because it leads to failure at a comparatively low deformation level. Moreover, ...

    • Hvordan styrke SFI-enes bidrag til innovasjon? 

      Henriksen, Partow Pakdel; Nisja, Ragnhild; Størkersen, Kristine Vedal; Wærnes, Aud Nina; Sletta, Håvard; Haug, Kaja Kristine; Måsøy, Svein-Erik; Langseth, Magnus; Henriksen, Ottar; Skjølsvik, Kjell Olav (Research report, 2023)

    • Impact against coated offshore steel pipes 

      Kulsrud, Eirik Bugge; Hammersvik, Steffen (Master thesis, 2017)
      This thesis is part of an ongoing research program between SIMLab and Statoil about impacts on coated offshore pipelines. Impact loads may occur from objects such as anchors or trawls, causing severe damage to the pipe ...

    • Impact against empty and water-filled X65 steel pipes - Experiments and simulations 

      Kristoffersen, Martin; Casadei, Folco; Børvik, Tore; Langseth, Magnus; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2014)
      Offshore pipelines are frequently subjected to accidental impact loads, e.g. from anchors or trawl gear. A lot of parameters – including the pipe geometry, material properties, pipeline content, impact velocity, etc. – ...

    • Impact Against Offshore Pipelines 

      Mogstad, Ivar; Asheim, Tom Inge (Master thesis, 2013)
      Impact against offshore pipelines is investigated in this thesis. Introductory low velocity experiments on pipeline specimens using the stretch bending rig at the Department of Structural Engineering, NTNU, were carried ...

    • Impact against X65 steel pipes - An experimental investigation 

      Kristoffersen, Martin; Børvik, Tore; Westermann, Ida; Langseth, Magnus; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2013)
      Offshore pipelines subjected to accidental loads, such as impacts from trawl gear or anchors, may experience large global displacements from its initial position and large local strains. The axial forces set up during ...

    • Impact behaviour of stiffened aluminium plates 

      Kårstad, Bente Larsen; Skajaa, Birgitte (Master thesis, 2015)
      In this master thesis, impact loading against stiffened aluminium plates of the aluminium alloy AA6082-T6 was studied. The main objective was to study the behaviour of extruded aluminium profiles welded together when exposed ...

    • Impact Behaviour of Stiffened Aluminium Plates 

      Lien, Even Josten; Skyrud, Aleksander (Master thesis, 2016)
      In this master thesis stiffened aluminium plates of the aluminium alloy AA6082 subjected to impact loading was studied. The main objective was to study the behaviour of welded and stiffened aluminium plates exposed to ...

    • Impact behaviour of stiffened steel plates 

      Sølvernes, Sindre Hellem (Master thesis, 2015)
      The impact behavior of stiffened steel plates subjected to impact loading from concentrated loads was studied experimentally and numerically. Both dynamic and quasi-static tests of stiffened steel plates with geometry ...

    • Impact on porous polymer coated pipelines 

      Vestrum, Ole (Doctoral theses at NTNU;2020:105, Doctoral thesis, 2020)

    • Influence of fluid-structure interaction effects on the ductile fracture of blast-loaded steel plates 

      Aune, Vegard; Valsamos, Georgios; Casadei, Folco; Langseth, Magnus; Børvik, Tore (Journal article; Peer reviewed, 2021)
      This work presents ongoing research on the influence of fluidstructure interaction (FSI) effects on the ductile crack growth in perforated steel plates subjected to blast loading. The FSI effects were studied numerically ...

    • Influence of sigma-phase precipitation on the impact behaviour of duplex stainless steel pipe fittings 

      Børvik, Tore; Marken, Lene Anita; Langseth, Magnus; Rørvik, Gisle; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2016)
      In this study, the effect of sigma-phase precipitation in duplex stainless steel (grade 2205) pipe fittings collected from top-side process systems offshore was investigated under realistic loading conditions. This was ...

    • Internal Blast Loading of Submerged Floating Tunnels in Concrete 

      Krone, Erika (Master thesis, 2018)
      A submerged floating tunnel (SFT) has been proposed for crossing the fjords which today are operated by ferries along the Norwegian highway E39. One concern with a potential SFT, which probably would be built using reinforced ...

    • Investigation of high-strength steel component subjected to stretch-bending: effect of forming history 

      Fyllingen, Ørjan; Langseth, Magnus; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2014)
      The behaviour of a closed top-hat section made of Dogal 800 DP subjected to stretch-bending is studied both experimentally and numerically. The top-hat section was made by forming of a sheet using a FlexformTM fluid cell ...

    • Low-velocity impact behaviour and failure of stiffened steel plates 

      Gruben, Gaute; Sølvernes, S; Berstad, Torodd; Morin, David; Hopperstad, Odd Sture; Langseth, Magnus (Journal article; Peer reviewed, 2017)
      The behaviour and failure of stiffened steel plates subjected to transverse loading by an indenter is studied in this paper. Low-velocity dynamic and quasi-static tests of stiffened plates with geometry adopted from a ...

    • Low-velocity impact on high-strength steel sheets: An experimental and numerical study 

      Gruben, Gaute; Langseth, Magnus; Fagerholt, Egil; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2016)
      Low-velocity impact tests were performed on dual-phase and martensitic steel sheets and compared with corresponding quasi-static tests. The geometry and loading condition of the specimens were similar to formability tests, ...

    • Macroscopic modelling of Flow-Drill Screw connections 

      Sønstabø, Johan Kolstø; Morin, David Didier; Langseth, Magnus (Journal article; Peer reviewed, 2016)
      This study focuses on the modelling of Flow-Drill Screw (FDS) connections in large-scale shell analyses. Macroscopic connection models for large-scale crash simulations were assessed for modelling of FDS connections between ...