An advanced elastoplastic framework accounting for induced plastic anisotropy fully coupled with ductile damage

نویسندگان

چکیده

We present in this investigation an advanced phenomenological approach combining the computational efficiency of classical plasticity models and accuracy high resolution multiscale crystal schemes. Within approach, a new constitutive framework has been developed implemented into ABAQUS/Standard finite element (FE) code. Compared to approaches, allows accounting for initial induced plastic anisotropy, isotropic nonlinear hardening full coupling with ductile damage. Material parameters corresponding are identified based on polycrystalline simulations, where self-consistent scheme is used ensure transition between single polycrystal scales. The mechanical behavior assumed be elastoplastic (rate-independent), microscopic material degradation well-considered by introducing scalar damage variable at each crystallographic slip system individual grain. evolution yield surfaces, texture, accurately reproduced modeling, anisotropy evolve during deformation. Their laws simulations. different identification procedures presented extensively discussed. robustness reliability model analyzed through some relevant numerical predictions obtained applying combined tensile/shear test.

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ژورنال

عنوان ژورنال: International Journal of Mechanical Sciences

سال: 2021

ISSN: ['1879-2162', '0020-7403']

DOI: https://doi.org/10.1016/j.ijmecsci.2021.106620