@article{oai:nagoya.repo.nii.ac.jp:00010339,
 author = {WATANABE, Katsuhiko and AZEGAMI, Hideyuki},
 issue = {257},
 journal = {Bulletin of JSME},
 month = {},
 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 its applications 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-diplacement curves and the crack energy density which holds until a crack starts to grow is made 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 for a growing crack is derived by using the same crack models as used 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, based on the relations above.},
 pages = {3685--3692},
 title = {An Evaluation of the Fracture Resistance of a Stably Growing Crack by Crack Energy Density (1st Report, Derivation of Fundamental Relations and Proposal of Evaluation Method)},
 volume = {29},
 year = {1986}
}