Browsing Institutt for konstruksjonsteknikk by Author "Westermann, Ida"
Now showing items 1-8 of 8
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An experimental study on the deformation and fracture modes of steel projectiles during impact
Rakvåg, Knut Gaarder; Børvik, Tore; Westermann, Ida; Hopperstad, Odd Sture (Journal article, 2013)Previous investigations of the penetration and perforation of high-strength steel plates struck by hardened steel projectiles have shown that under certain test conditions the projectile may fracture or even fragment upon ... -
Comparing In Situ DIC Results from an Etched Surface with a Gold Speckled Surface
Paulsen, Christian Oen; Fagerholt, Egil; Børvik, Tore; Westermann, Ida (Journal article; Peer reviewed, 2019)A ferrite-pearlite two-phase steel was investigated using in situ scanning electron microscope (SEM) tensile testing combined with digital image correlation (DIC). Two different speckled patterns were used and compared. ... -
Crystal plasticity finite element simulations of pure bending of aluminium alloy AA7108
Saai, Afaf; Westermann, Ida; Dumoulin, Stephane; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2015)The crystal plasticity finite element method (CP-FEM) is used to investigate the influence of microstructure on the bending behaviour of the heat treatable aluminium alloy AA7108. The study comprises two materials obtained ... -
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 ... -
Influence of microstructure on work-hardening and ductile fracture of aluminium alloys
Pedersen, Ketill Olav; Westermann, Ida; Furu, Trond; Børvik, Tore; Hopperstad, Odd Sture (Journal article, 2015)The effect of microstructure on the work-hardening and ductile fracture of aluminium alloys was studied using an experimental–numerical approach. Four aluminium alloys with different strength and particle content were ... -
Micromechanical modelling of fracture in ductile alloys with applications to high-strength steel
Bergo, Sondre (Doctoral theses at NTNU;2020:313, Doctoral thesis, 2020) -
Work-hardening and ductility of artificially aged AA6060 aluminium alloy
Westermann, Ida; Pedersen, Ketill Olav; Børvik, Tore; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2016)The work-hardening and ductility of an artificially aged AA6060 aluminium alloy were studied based on tensile tests of smooth and notched cylindrical samples. The alloy was tested after three processing steps, each followed ... -
Work-hardening behaviour in age-hardenable Al-Zn- Mg(-Cu) alloys
Westermann, Ida (Doktoravhandlinger ved NTNU, 1503-8181; 2011:247, Doctoral thesis, 2011)This work is mainly an experimental study of work-hardening in age-hardenable Al-Zn-Mg(-Cu) alloys. The main objective has been to characterize the microstructure and mechanical properties and evaluate the data with respect ...