Predicting stretching failure in cold and warm draw FEM simulation using a new ductile failure criterion

Paper #:
  • 2018-01-0801

Published:
  • 2018-04-03
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Abstract:
A ductile failure criterion, which defines the stretching failure at localized necking and treats the critical damage as a function of strain path and initial sheet thickness, was proposed in previous study. In this study, the ductile failure criterion is used to predict failure in a FEM simulation on a TRIP690 steel rectangular cup draw process at room temperature. Then, working with an improved Zener-Hollomon parameter, the criterion is used to predict failure in an aluminum warm forming process. Compared with experimental measurement, the criterion can accurately predict the failure.
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