EFFECTS OF CRACK CLOSURE AND MEAN STRESS ON THE THRESHOLD STRESS INTENSITY FACTOR FOR FATIGUE OF AN ALUMINIUM CASTING ALLOY
作者： M. J. Couper , J. R. Griffiths
DOI: 10.1111/J.1460-2695.1990.TB00631.X
关键词:
摘要: — Observations have been made of the threshold fatigue properties an Al-Mg-Si casting alloy. First, it has shown that there exists a critical value stress ratio, R, below which intensity factor decreases with increasing R but above is constant. Second, measurements cyclic crack opening displacement used to examine closure effects and deduce effective factor. The two sets data are compared existing models for phenomena.
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