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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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    8. Glossary

    ductility; ductilité

    A material's intrinsic capacity to undergo a certain amount of plastic deformation without breaking (or forming meso-cracks).

    germination; nucleation

    Mechanism for the appearance of microporosities, either through inclusion fragmentation or inclusion-matrix decohesion.

    coalescence; coalescence

    Final failure mechanism at microstructural level. Formation of microcracks between pores, leading to complete macroscopic failure of the material.

    fracture criterion

    Generally decoupled from the material's behavior, a fracture criterion is used to calculate the time at which fracture occurs (either through critical damage or plastic deformation at fracture) as a function of the stress state during the loading...

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