2024-03-28T09:11:23Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00010339
2023-01-16T04:32:53Z
312:313:314
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)
WATANABE, Katsuhiko
31361
AZEGAMI, Hideyuki
31362
Fracture
Stable Crack Growth
Facture Resistance
Crack Energy Density
Additional Rate of Crack Energy Density
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.
journal article
日本機械学会
1986
application/pdf
Bulletin of JSME
257
29
3685
3692
http://hdl.handle.net/2237/12159
0021-3764
https://nagoya.repo.nii.ac.jp/record/10339/files/110002358883_An_evaluation_of_the_fracture_Resistance.pdf
eng
http://ci.nii.ac.jp/naid/110002358883/
日本機械学会
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