engleski

On anisotropic elastoplastic responses of shell structures

The paper is concerned with the numerical formulation of the anisotropic behaviour of shell structures at large strain elastoplasticity. The material model is based on the multiplicative decomposition of deformation gradient. The orthotropic elastic responses as well as the yield function employing the nonlinear isotropic hardening are described by using the appropriate invariants. The anisotropic deformation responses are demonstrated by numerical example.

anisotropic plasticity; orthotropic yield function; multiplicative inelasticity; finite strains; isotropic hardening

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