A fixed point in the Coffin–Manson law

Tirbonod, B.

doi:10.1016/j.ijfatigue.2015.06.011

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Correlation Between Fatigue Ductility Coefficient and Fatigu1

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Cited by 6 publications

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“…Fig. 4); the coefficients ε' p and N' i , reported to be the coordinates of a fixed point at varying c, would have potential to be related to the fatigue damage [14]. Fig.…”

Section: Correlation Between Fatigue Ductility Coefficient and Fatigumentioning

confidence: 99%

A cyclic slip irreversibility based model for fatigue crack initiation of nickel base alloys

Risbet

Feaugas

2017

International Journal of Fatigue

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Abstract. The opportunity to define a microscopic law of fatigue crack initiation using Manson-Coffin law formulated in terms of cyclic slip irreversibility deduced from AFM measurements is discussed for a polycrystalline superalloy with different grain sizes and precipitate sizes. The results show that the modified Manson-Coffin law, relating cyclic slip irreversibility parameter to fatigue crack initiation life, is sustained through a two-parameter power law: ε f ′ and c. The analysis suggests that the exponent c-value can be related to the degree of plastic strain incompatibility between grains, and the cumulative irreversible cyclic plastic strain to crack initiation is a relevant damage indicator for crack initiation. Consequently, our approach allows giving a physical base of engineering law.

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“…Fig. 4); the coefficients ε' p and N' i , reported to be the coordinates of a fixed point at varying c, would have potential to be related to the fatigue damage [14]. Fig.…”

Section: Correlation Between Fatigue Ductility Coefficient and Fatigumentioning

confidence: 99%