• Behaviour of Flow-Drilling Screw Connections 

      Sønstabø, Johan Kolstø; Holmstrøm, Petter Henrik; Morin, David; Langseth, Magnus (Journal article; Peer reviewed, 2014)
      An experimental study on the behaviour and fracture of flow-drilling screw connections was carried out. Cross test specimens were used to study the deformation and fracture of the connections under different loading modes. ...
    • Experimental Characterization and Modelling of the PLC Effect in an AlMg-Alloy 

      Xu, Jianbin; Holmedal, Bjørn; Hopperstad, Odd Sture; Marthinsen, Knut (Peer reviewed; Journal article, 2021)
      In the present work, uniaxial tension tests have been conducted to study the mechanical response of a commercial Al4.5wt%Mg alloy (AA5182). The measurements range from the strain rate of 10-4 to 100 s-1 at room temperature. ...
    • Experimental detection of the onset of local necking in an aluminium sheet 

      Vysochinskiy, Dmitry; Coudert, Térence; Hopperstad, Odd Sture; Lademo, Odd-Geir; Reyes, Aase Gavina Roberg (Journal article; Peer reviewed, 2014)
      Forming limit diagrams (FLDs) are widely used to assess metal sheet formability. Experimental FLDs are obtained by performing formability tests and determining failure strains. The standard method for detection of forming ...
    • Experimental detection of the onset of local necking in an aluminium sheet 

      Vysochinskiy, Dmitry; Coudert, Térence; Hopperstad, Odd Sture; Lademo, Odd-Geir; Reyes, Aase Gavina Roberg (Journal article; Peer reviewed, 2014)
      Forming limit diagrams (FLDs) are widely used to assess metal sheet formability. Experimental FLDs are obtained by performing formability tests and determining failure strains. The standard method for detection of forming ...
    • Modelling of strain-path transients in commercially pure aluminium 

      Qin, Jisheng; Holmedal, Bjørn; Hopperstad, Odd Sture (Journal article, 2017)
      In the current work, the recently proposed homogeneous anisotropic hardening (HAH) model, featuring a distorted yield surface, is applied to commercially pure aluminium. A dislocation-based hardening rule is incorporated ...
    • Slip system interaction matrix and its influence on the macroscopic response of Al alloys 

      Khadyko, Mikhail; Dumoulin, Stephane; Hopperstad, Odd Sture (Journal article; Peer reviewed, 2014)
      In numerical models based on the crystal plasticity theory, various rules are implemented to describe hardening on the slip system level. The rules used are often variations of the Mecking-Kocks law, where the statistically ...