MOLECULAR DYNAMICS SIMULATIONS OF DEFORMATIONS OF TWO-DIMENSIONAL LENNARD-JONES CRYSTAL UNDER SHOCK COMPRESSIONReportar como inadecuado




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Abstract : Molecular dynamics simulations of shock wave in two-dimensional Lennard-Jones crystal are reported. Such simulations automatically include the essentials of defect creation and motion. which are not obtainable in a fundamental way from a macroscopic continuum model. Figures of atomic configurations of the crystal during shock compression are drawn by computer. From these figures, the processes of deformations of crystal can be watched. The stress and strain in intermediate state at the shock front are calculated by MD. It has been observed that under sufficiently strong shock waves, the state of stress behind the shock front became hydrostatic.





Autor: Gesan Liu Ruoqi Zhang Wanrui Yu

Fuente: https://hal.archives-ouvertes.fr/



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