J. Phys. IV France
Volume 134, August 2006EURODYMAT 2006 - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
|Page(s)||529 - 534|
|Publié en ligne||26 juillet 2006|
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 529-534
Laser driven quasi-isentropic compression experiments (ICE) for dynamically loading materials at high strain ratesR.F. Smith, J.H. Eggert, P. Celliers, A. Jankowski, T. Lorenz, S. Moon, M.J. Edwards and G. Collins
Lawrence Livermore National Laboratory, PO Box 808, CA 94550, USA
Published online: 26 July 2006
We demonstrate the recently developed technique of laser driven isentropic compression (ICE) for dynamically compressing Al samples at high laoding rates close to the room temperature isentrope and up to peak stresses above 100 GPa. Upon analysis of the unloading profiles from a multi-stepped Al/LiF target a continuous path through Stress-Density space may be calculated. For materials with phase transformations ramp compression techniques reveals the location of equilibrium phase boundaries and provide information on the kinetics of the lattice re-ordering.
© EDP Sciences 2006