Physics – Classical Physics
Scientific paper
2010-02-03
Comptes Rendus de l Acad\'emie des Sciences - Series IIB - Mechanics-Physics-Chemistry-Astronomy 336, 5 (2008) 417-421
Physics
Classical Physics
Scientific paper
The proposed yield criterion depends upon two material constants and is proven to be smooth and convex under a simple condition. These properties induce a mathematical robustness that allows a further use in a damage mechanics model. The analytical gradient and hessian are given. The obtained yield surface is relevant to Kupfer's biaxial testings on concrete. The identification procedure, with respect to the classical uniaxial tension and compression testings, is detailed.
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