Interpretation of shock-wave data for beryllium and uranium with an elastic-viscoplastic constitutive model
- 1 August 1981
- journal article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 52 (8) , 5072-5083
- https://doi.org/10.1063/1.329458
Abstract
We have developed a new elastic-viscoplastic constitutive model for metals which can easily be incorporated into a one-dimensional Lagrangian hydrodynamic computer code. Rather than the usual constant relaxation time, we have used one which is a function of temperature (i.e., thermal energy) and strain rate. This allows us to successfully calculate shock-wave profiles, including the effect of spall, in beryllium and uranium over a wide range of stress, temperature, strain, and strain rate.This publication has 9 references indexed in Scilit:
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