Abstract
Anisotropie damage evolution in an anisotropic material under multiaxial loading is analysed by the concepts and theory of damage mechanics. A model for damage evolution and a damage criterion for deformation instability are proposed. This criterion is used to predict the forming limit of metal plates. The damage evolution law and criterion together with the forming limit diagram predicted are compared with the experimental results for type 08 boiling steel specimens under simple tension and biaxial loading.
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