✦ LIBER ✦

On the effect of cyclic stress ratio on the fatigue crack propagation

✍ Scribed by Takeshi Kanazawa; Susumu Machida; Kouy/.u Itoga

Publisher: Elsevier Science
Year: 1975
Tongue: English
Weight: 637 KB
Volume: 7
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(75)90045-4

No coin nor oath required. For personal study only.

✦ Synopsis

A new model of fatigue crack propagation is proposed which takes the effect of cyclic stress ratio into account. In the model it is assumed tbat the fatigue cmck propagation rate is proportional to the absorbed hysterisis energy per stress cyck at the tip of a crsck. The energy is calctdated from stress deld resulting from the Dugdak-Barenblatt Model and strain field from an experimental result. The model was applied to analyse the experiments on several materials.

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