一次要素を用いた原子構造体の効率的不安定性解析手法の開発とアモルファス金属への適用

概要

論文の詳細を見る
For atomic-level investigation of plasticity in amorphous metal, instability analysis which can rigorously describe unstable deformation of atomic structures is a key technique. However, the analytical method cannot be applied to large-scale amorphous metal because of the enormously-increasing computational load with respect to the number of atoms. In this study, an efficient instability analysis method for a large-scale atomic system is proposed using linear elements, and it is applied to cracked amorphous metal under tension. The proposed method successfully evaluates the instability critarion as well as the highly-localized unstable deformation. Moreover, the computational efficiency is considerably improved from the original one, enabling us to address mechanical instability problems in amorphous metal consisting of a great number of atoms.
社団法人日本機械学会の論文
2008-10-25