@article{oai:nagoya.repo.nii.ac.jp:00005662,
 author = {渡辺, 勝彦 and Watanabe, Katsuhiko and 畔上, 秀幸 and Azegami, Hideyuki},
 issue = {475},
 journal = {日本機械学会論文集 A編},
 month = {Mar},
 note = {The objective of this study is to propose a practical method to evaluate the fracture resistance of a stably growing crack by crack energy density and to verify it through applications of the method to actual stable crack growth problems. The contents of this report are as follows: (1) More Refined investigation of the relationship obtained before between initial crack length, load-displacement curves and the crack energy density which holds until a crack starts to grow is shown by using two crack models. (2) A relationship between initial crack length, present crack length, load-displacement curves and the additional rate of crack energy density caused by crack extension which holds generally to a growing crack is derived by using the same crack models as in (1). (3) A method to evaluate the fracture resistance of a stably growing crack from load-displacement curves which can be easily obtained by experiments is proposed, base on the relations above.},
 pages = {727--735},
 title = {き裂エネルギ密度による安定成長き裂の破壊抵抗評価 (第1報, 基本関係の導出と評価方法の提案)},
 volume = {52},
 year = {1986}
}