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) 37-42
DOI: 10.1051/jp4:2006134007
Dynamic response of single crystalline copper subjected to quasi-isentropic laser and gas-gun driven loading
M. Meyers1, H. Jarmakani1, J.M. McNaney2, M. Schneider1, J.H. Nguyen2 and B. Kad11 Mechanical and Aerospace Engineering Dept., Materials Science Program, University of California, San Diego, La Jolla, CA 92093-0418, USA
2 Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
(Published online 26 July 2006)
Abstract
Single crystalline copper was subjected to quasi-isentropic compression via gas-gun and laser loading at pressures
between 18 GPa and 59 GPa. The deformation substructure was analyzed via
transmission electron microscopy (TEM). Twins and laths were evident at the
highest pressures, and stacking faults and dislocation cells in the
intermediate and lowest pressures, respectively. The Preston-Tonks-Wallace
(PTW) constitutive description was used to model the slip-twinning process
in both cases.
© EDP Sciences 2006