1231 衝撃負荷を受けるぜい性材料の破壊とその制御に関する研究(G01-2 原子モデル・離散モデルシミュレーション,G01 計算力学)

概要

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It is difficult to analyze theoretically the dynamic fracture behavior of the brittle material board because it is discontinuous fracture behavior. In this research, the impact fracture when the impact body collides with the brittle material board with an initial crack is analyzed by using the Distinct Element Method (DEM). DEM is suitable for the analysis of the fracture behavior from the continuous body to discontinuous body. The analytical results are compared with the experimental one and the validity of analytical results are checked. By this research, it is obvious that the initial crack progresses straight under some appropriate conditions of impact velocity, impact position and initial crack length.
社団法人日本機械学会の論文
2007-09-07