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Repozytorium publikacji
Politechniki Gdańskiej

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Elastoplastic material law in 6-parameter nonlinear shell theory

We develop the elastoplastic constitutive relations for nonlinear exact 6-parameter shell theory. A J2-type theory with strain hardening is formulated that takes into account asymmetric membrane strain measures. The incremental equations are solved using implicit Euler scheme with closest point projection algorithm. The presented test example shows the correctness of the proposed approach. Influence of micropolar material parameters on numerical results is studied.

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