J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 37-42
Dynamic response of single crystalline copper subjected to quasi-isentropic laser and gas-gun driven loadingM. Meyers1, H. Jarmakani1, J.M. McNaney2, M. Schneider1, J.H. Nguyen2 and B. Kad1
1 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
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.
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