Effect of stress ratio on fatigue crack growth
by A.A. Bahashwan
International Journal of Materials and Product Technology (IJMPT), Vol. 12, No. 4/5/6, 1997

Abstract: Crack growth data of 6061-T6 aluminium alloys were analysed to study the effect of stress ratio. The life of the specimen decreased as the maximum stress intensity increased. The data covered R values for 0.0, 0.1, 0.2 and 0.3 and a good correlation was obtained for U = ((13.5 + 6.0)/l000)ΔK + 1.4R. A crack growth rate equation was also developed.

Online publication date: Tue, 02-Nov-2010

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