✦ LIBER ✦

Effect of notch root radius on the initiation and propagation of fatigue cracks

✍ Scribed by M.B.P. Allery; G. Birkbeck

Publisher: Elsevier Science
Year: 1972
Tongue: English
Weight: 407 KB
Volume: 4
Category: Article
ISSN: 0013-7944
DOI: 10.1016/0013-7944(72)90047-1

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✦ Synopsis

Under the conditions of constant nominal applied stress. increasing notch root radius causes an increase in the number of cycles to initiate a fatigue crack at a notch root. An explanation of the effect is given in terms of the effective stress concentration factor of the notch. Data are presented which indicate that variations in notch root radius may cause changes in the crack growth rate during the initial stages of propagation from a notch.

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