✦ LIBER ✦

On the statistical characteristics of fatigue crack propagation

✍ Scribed by Yuji Kimura; Takeshi Kunio

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 793 KB
Volume: 28
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(87)90071-3

No coin nor oath required. For personal study only.

✦ Synopsis

Abstmct-In order to investigate the governing factor which causes the statistical fluctuation in the fatigue crack growth process, various experimental and simulated.results obtained based on the Paris-Erdogan equation of fatigue crack growth rate were surveyed. Then, the governing factors for the randomness in microscopic fatigue fracture process being reflected on the phenomenological crack growth characteristics were examined. As a result, the distribution of the resisting strength of material to crack propagation with a certain unit size US is considered to be important. Also, the significance of the restriction of crack plane, that it can not rotate remarkably around the crack growth direction axis, is also indicated.

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