X-ray diffraction from shocked crystals: Experiments and predictions of molecular dynamics simulations

X-ray diffraction from shocked crystals: Experiments and predictions of molecular dynamics simulations

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...

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Detalhes bibliográficos
Main Authors: Rosolankova, K, Kalantar, D, Belak, J, Bringa, E, Caturla, M, Hawreliak, J, Holian, B, Kadau, K, Lomdahl, P, Germann, T, Ravelo, R, Sheppard, J, Wark, J
Formato: Conference item
Publicado em: 2004
Descrição
Resumo: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.

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