Blar i forfatter Artikler, rapporter og annet (bygg, energi og materialteknologi) "Khadyko, Mikhail"

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    • Finite element simulation of ductile fracture in polycrystalline materials using a regularized porous crystal plasticity model 

      Khadyko, Mikhail; Frodal, Bjørn Håkon; Hopperstad, Odd Sture (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-18)
      In the present study, a hypoelastic–plastic formulation of porous crystal plasticity with a regularized version of Schmid’s law is proposed. The equation describing the effect of the voids on plasticity is modified to allow for an explicit analytical solution for the effective resolved shear stress. The regularized porous crystal plasticity model is implemented as a material model in a finite element ...

    • On crystallographic aspects of heterogeneous plastic flow during ductile tearing: 3D measurements and crystal plasticity simulations for AA7075-T651 

      Morgeneyer, Thilo; Khadyko, Mikhail; Buljac, A; Helfen, Lukas; Hild, Francois; Benallal, Ahmed; Børvik, Tore; Hopperstad, Odd Sture (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-21)
      Crystallographic aspects of heterogeneous plastic flow during ductile tearing are assessed experimentally by combining in situ synchrotron laminography imaging of notched flat samples with a full-field measurement technique and numerical simulations with the crystal plasticity finite element method (CP-FEM). Advantage is taken of the plane strain condition in the region ahead of the notch root (i.e., ...