Quizzed article | REF: M3033 V1

Modeling of ductile damage in metal forming

Authors: Trong Son CAO, Pierre-Olivier BOUCHARD

Publication date: June 10, 2016, Review date: September 10, 2021 | Lire en français

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5. Application examples for forming processes

This section presents a few examples of applications of the models presented above. It is important to note that the accuracy of the results obtained depends not only on the richness of the model used, but also on the quality of the parameter identification procedure. It should also be added that the behavior of materials is elasto-plastic with isotropic strain-hardening. Details of the exact formulas of the strain-hardening law and its identified parameters are presented in the corresponding references.

5.1 Breakage criteria

Decoupled models have the major advantage of being easy to implement and use. As they do not take into account the influence of damage on material behavior, the mesh size dependence of the solution, due to the softening effect of damage,...

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