Submitted to a sudden and a transient loading, a metallic structure quickly evolves toward viscoplastic behavior, including high strain rates. After generalities about the specific loading and the description of the experimental setup, a numerical simulation based on the F.E.M. using an explicit scheme is presented. Three different constitutive laws are discussed: the Perzyna, the Bodner-Partom, and that of Chaboche. The identification of constitutive parameters is made using unidirectional tests on the studied material (aluminum alloy 5754). A comparison between numerical simulations and experiments shows that the method is relevant.
Experiments and Numerical Simulations on Thin Metallic Plates Subjected to an Explosion
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division October 27, 1999; revised manuscript received November 29, 2000. Associate Editor: R. Batra.
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Woznica, K., Pennetier , O., and Renard, J. (November 29, 2000). "Experiments and Numerical Simulations on Thin Metallic Plates Subjected to an Explosion ." ASME. J. Eng. Mater. Technol. April 2001; 123(2): 203–209. https://doi.org/10.1115/1.1345528
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