Article ID Journal Published Year Pages File Type
794480 Journal of Materials Processing Technology 2006 4 Pages PDF
Abstract

Failure prediction in fracture-free materials under a general stress–strain path has posed a great challenge to researchers. Despite the fact that numerical assessment of ductile failure under tensile stress states has been reasonably well described in the literature, definition of a failure criterion or modelling approach capable of successfully predicting fracture onset under a general stress–strain path has still been the object of intense research. This work presents a computational strategy to predict ductile failure onset in both compressive and tensile-dominant processes using fracture criteria based on damage models. The finite element formulation accounts for an elasto-plastic, fully coupled damage material model and the solution algorithm uses an implicit time integration scheme. The numerical predictions are validated against experimental results for tensile and upsetting tests.

Related Topics
Physical Sciences and Engineering Engineering Industrial and Manufacturing Engineering
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