Assessment of elasto-viscoplasticity mean-field homogenization rules applied to FCC polycrystals

D. Goncalves (1, 2) , M. Sauzay (1) , P. Lamagnere (1)

1 CEA-DES (ex-DEN) - CEA-Direction des Energies (ex-Direction de l'Energie Nucléaire)
2 UPMC - Université Pierre et Marie Curie - Paris 6

Numerical approaches have been extensively developed to predict the mechanical behavior of polycrystalline metals and alloys. In particular, micro-mechanical approaches have been used to take into account the physical mechanisms of deformation at different scales. Self-consistent approaches are common mean-field homogenization methods used to link crystal deformation mechanisms to the overall behavior of heterogeneous materials.

Keywords: mean-field homogenization; elasto-viscoplasticity; viscoplastic behaviour; micro-mechanical approaches; full-field finite element

Domains: Nuclear Experiment [nucl-ex]; Nuclear Theory [nucl-th]

D. Goncalves, M. Sauzay, P. Lamagnere. Assessment of elasto-viscoplasticity mean-field homogenization rules applied to FCC polycrystals. EMMC15 - 15th European Mechanics of Materials Conference, Sep 2016, Bruxelles, Belgium. ⟨hal-02442278⟩