1920 長円空孔が分布する多孔平板の損傷評価(S19-2 構造材のクリープ・疲労・損傷解析,S19 材料の非弾性変形とそのモデル化)

概要

論文の詳細を見る
The ductile fracture of materials is caused by the void growth and linking. So, it is important to evaluate the damaged condition of ductile materials which contain many voids. In this study, the new way to evaluate the damaged condition of porous material with elliptic holes, using equivalent net stress is proposed. The validity of equivalent net stress in biaxial deformation was examined experimentally. As a result, correlations between equivalent net stress and experimental results were varified only when volume fraction of holes are approximately 1.7%, and to improve the validity of evaluation of damaged condition on the other volume fraction, it is needed to adopt new facters affecting to the ductile deformation of materials.
一般社団法人日本機械学会の論文
2005-09-18