On structural computations until fracture based on an anisotropic and unilateral damage theory

Abstract : This paper describes the formulation and numerical implementation of a family of anisotropic and unilateral damage models for the prediction of damage and final rupture in engineering structures. The damage can be load-oriented, microstructure-oriented or (for the first time within this modeling framework) softening. The local equations are solved using a combination of fixed-point and Newton-Raphson algorithms, whose efficiencies are drastically improved through Aitken's relaxation and BFGS approximation. A delay-effect method is used to control the localization of damage, which leads to an objective calculation of the final rupture of structures.
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Submitted on : Saturday, August 10, 2013 - 10:25:40 PM
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Martin Genet, Lionel Marcin, Pierre Ladevèze. On structural computations until fracture based on an anisotropic and unilateral damage theory. International Journal of Damage Mechanics, SAGE Publications, 2013, ⟨10.1177/1056789513500295⟩. ⟨hal-00851003⟩

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