OS0906 アルミニウム合金破壊挙動の衝撃速度依存性に関する研究(衝撃工学とその応用,オーガナイズドセッション)

概要

論文の詳細を見る
Fracture toughness K_<IC> or J_<IC> is generally used as criterion for safety design. These criteria are defined under plane sirain condition. Shear lips on crack surface is caused in case of thin plates fracture. Therefore, fracture mechanism in thin plates is not clarified. And some of these fracture behavior depends on loading speed. In this study, three point bending fracture experiments are demonstrated to gain basic data for elastic plastic fracture in thin plates. The specimens are consists of aluminum alloy. Pure mode I and mixed mode fracture experiments are done under quasi-static loading and dynamic loading. Roughness on crack surfaces are evaluated using laser focus displacement meter. Fracture path, crack surface trend and surface roughness are depended on loading speed.
一般社団法人日本機械学会の論文
2009-07-24