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On the nonuniqueness of the load wave form in a reaction rate mean fatigue crack growth model

✍ Scribed by John L. Bogdanoff

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 364 KB
Volume: 46
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(93)90140-n

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✦ Synopsis

Ahatraet-A reaction rate model for mean fatigue crack growth (FCG) under periodic load variation is employed. It is shown that a specified (load,, load& or (S,, , R) is not suthcient to uniquely determine the crack growth rate at constant temperature T and environment E. Further, given a periodic load wave form and (T, E), it is shown that there is a family of different load wave forms that produce the same crack growth rate.

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