SPALLATION UNDER THE ACTION OF A LASER INDUCED SHOCK WAVE

F. Cottet , A. Ng , L. da Silva , L. Marty

The conditions of laser-driven shock wave loading leads to study the dynamic fracture in an unusual range of stress and strain rates : 0.2-2 Mbar and more than 107s-1. A cumulative damage criteria for spallation process has been included in a one-dimensional finite difference hydrodynamic code. This program correctly fits spallation experiments on aluminum targets of various thicknesses irradiated by 2 ns laser pulse of 1012W/cm2 incident intensity.

Domaines: Articles anciens

F. Cottet, A. Ng, L. da Silva, L. Marty. SPALLATION UNDER THE ACTION OF A LASER INDUCED SHOCK WAVE. Journal de Physique Colloques, 1988, 49 (C3), pp.C3-419-C3-424. ⟨10.1051/jphyscol:1988360⟩. ⟨jpa-00227783⟩