8th International Conference on Mehanical and Physical Behaviour of Materials under Dynamic Loading
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 237-241
DOI: 10.1051/jp4:2006134036
Shock waves and the heterogeneity of materials
J.L. DequiedtCEA/DIF, 91680 Bruyères-le-Châtel, France
(Published online 26 July 2006)
Abstract
In a shock front, the evolution of thermomechanical state
variables, although being continuous, occurs with a characteristic length
smaller than the size of an elementary relevant volume (E.R.V.) of the
material. So, the problem should be solved at this mesoscopic scale;
nonetheless, we show that it is possible to derive jump relations on mean
values at the macroscopic scale so long as the local problem satisfies some
properties of "homogeneisability".
© EDP Sciences 2006