Issue |
DYMAT 2009
Volume 2, 2009
DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
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Page(s) | 1271 - 1276 | |
Section | Constitutive Modeling | |
DOI | https://doi.org/10.1051/dymat/2009179 | |
Published online | 15 September 2009 |
DOI: 10.1051/dymat/2009179
Determination of damage parameters without numerical simulation using various shock experiments. The lead example
C. Bolis1, J. Dequiedt1, J. Servas1, C. Voltz2, N. Cordier1 and D. Sihachakr11 CEA, DAM, DIF, 91297 Arpajon, France
2 CEA, DAM, Valduc, 21120 Is-sur-Tille, France
Published online: 15 September 2009
Abstract
The determination of parameters for classical models of dynamic damage, such as Tuler-Butcher or Johnson, needs usually various iterations of numerical simulations. Even when a set of parameters is determined with a particular experiment, one can not assure that it will allow fitting other experiments with different types of solicitation. A number of shock experiments have been led on a Lead-Calcium alloy to study its dynamical damage behavior. Various types of solicitation have been achieved (plate impact, laser driven shock and explosive). A continuous evolution of spall threshold as a function of release rate has been observed and is used to determine a set of parameters for damage model without numerical simulations. Some experimental results and a quick review of the method used are presented in this article.
© EDP Sciences 2009