期刊
MATHEMATICS AND MECHANICS OF SOLIDS
卷 6, 期 6, 页码 613-630出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/108128650100600603
关键词
anisotropic yielding; generalized invariants; theory of representation; aluminum alloys
Within the framework of the theory of representation, generalizations to anisotropic conditions of the invariants of the deviatoric stress are proposed. Using these generalized invariants, any isotropic yield criterion can be extended such as to describe any type of material symmetry. In this paper, we apply this method to extend to orthotropy Drucker's isotropic criterion. Comparison with data on aluminum alloys show that this new criterion describes with improved accuracy the anisotropy of the plastic response.
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