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Elastoplastic nonlinear FEM analysis of FGM shells of Cosserat type

Abstract

The paper is a continuation of [1] where the formulation of the elastic constitutive law for functionally graded materials (FGM) on the grounds of nonlinear 6-parameter shell theory with the 6th parameter (the drilling degree of freedom) was presented. Here the formulation is extended to the elasto-plastic range. The material law is based on Cosserat plasticity and employs the well-known Tamura-Tomota-Ozawa (TTO) [2] mixture model with additional formulae for Cosserat material parameters. Formulation is verified by solving a set of demanding analyses of plates, curved and multi-branched shells, including geometry, thickness and material distribution variation parameter analyses.

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Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
COMPOSITES PART B-ENGINEERING no. 154, pages 478 - 491,
ISSN: 1359-8368
Language:
English
Publication year:
2018
Bibliographic description:
Burzyński S., Chróścielewski J., Daszkiewicz K., Witkowski W.: Elastoplastic nonlinear FEM analysis of FGM shells of Cosserat type// COMPOSITES PART B-ENGINEERING. -Vol. 154, (2018), s.478-491
DOI:
Digital Object Identifier (open in new tab) 10.1016/j.compositesb.2018.07.055
Sources of funding:
Verified by:
Gdańsk University of Technology

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