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Simulation of dynamic failure in ductile metals

: Daridon, L.; Campagne, L.; Poizat, C.; Ahzi, S.

Lewis, R.W.:
1st International Conference on Finite Element for Process 2003. Conference Proceedings. CD-ROM : 13th to 14th November 2003, Luxembourg
Luxembourg, 2003
6 pp.
International Conference on Finite Element for Process <1, 2003, Luxembourg>
Conference Paper
Fraunhofer IWM ()
dynamic plasticity; mechanical threshold stress; nucleation and growth; blanking; impact

In the present work, we present the application of a physically based model for planar impact tests and blanking process. This model combines the Mechanical Threshold Stress (MTS) model for the evolution of the flow stress and a void nucleation and growth model. First, this paper presents results from numerical simulation of planar impact test with cylindrical target and their comparsion with experimental results for OFHC copper. Second we present results of planar impact test with conical target for