734 分子動力学による応力波伝ぱ問題の基本的検討(OS11(4) 構造体の高速変形と応力波)

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  • 734 Fundamental examination of stress wave propagation based on molecular dynamics

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In order to study the microscopic deformation behavior of materials, numerical simulations such as the molecular dynamics (MD) method, Monte Carlo method and so forth have been developed. Empirical MD method is conducted by solving the movement of each particle, which constitutes the group of molecules or atoms, on the basis of the equation of motion and the potential function that represents the interaction among particles. This method enables us to trace respective particles, directly, while it also enables us to evaluate the dynamic behavior of the group of particles, statistically. It leads to understanding of macroscopic phenomena. In this study, we adopted the embedded atom method (EAM) potential for the investigation of the behavior of fcc metal (aluminum) subjected to impact loading.

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