A simple mechanical analysis of the isentropic compression experiment
1 École Nationale Supérieure des Mines de Saint-Etienne, SMS-EMSE, CNRS UMR 5146, 158 cours Fauriel, 42023 Saint-Etienne Cedex 2, France
2 CEA-Valduc, DRMN, 21120 Is-sur-Tille, France
The uniaxial strain compression test, also referred to as isentropic compression experiment, was analyzed using a simple basically analytical model. It accounts for the compression under prescribed loading rate of a single phase elastic, elastic-perfectly plastic, or elastic-viscoplastic material. In each case, stresses, elastic and plastic strain rates, as well as the kinetic, elastic, and plastic powers, were derived and compared.
© Owned by the authors, published by EDP Sciences, 2012