X-Ray Diffraction from Shocked Crystals: Experiments and Predictions of Molecular Dynamics Simulations

K. ROSOLANKOVA; D. H. KALANTAR; J. F. BELAK; E.M. BRINGA; M.J. CATURLA

Portland, Oregon

Congreso; SHOCK COMPRESSION OF CONDENSED MATTER - 2003; 2003

American Institute of Physics

When a crystal is subjected to shock compression beyond its Hugoniot Elastic Limit (HEL), the deformation it undergoes is composed of elastic and plastic strain components. In situ time‐dependent X‐ray diffraction, which allows direct measurement of lattice spacings, can be used to investigate such phenomena. This paper presents recent experimental results of X‐ray diffraction from shocked fcc crystals. Comparison is made between experimental data and simulated X‐ray diffraction using a post‐processor to Molecular Dynamics (MD) simulations of shocked fcc crystals. © 2004 American Institute of Physics