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Fatigue crack initiation at a notch
International Journal of Fatigue, 2011A short crack approach has been developed to determine the fatigue crack initiation life at a notch tip, in which the initiation life is assumed to correspond to the period during which an initial crack, equivalent to a microscopic defect, grows to attain a detectable size. This approach is compared to conventional local strain approach and it is shown
Ranganathan, Narayanaswami +5 more
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Fatigue-crack initiation at corrosion pits
Metals Technology, 1982Abstract The initiation of fatigue cracks at corrosion pits has been responsible for the failure of a wide range of engineering components. The present work demonstrates the effects ofcorrosion pits up to 250μm deep on the initiation offatigue cracking in both plain and notched specimens of a low-alloy steel.
T. C. Lindley, P. Mcintyre, P. J. Trant
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The physics of fatigue crack initiation
International Journal of Fatigue, 2013Abstract The fatigue life of a component can be expressed as the sum of two segments of life: (a) the number of loading cycles required to initiate a crack and (b) the number of cycles it takes that crack to propagate to failure. In this review, the primary emphasis is relating the fatigue crack initiation to the microstructure of the material.
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A Theory of Fatigue Crack Initiation
1991A theory of fatigue crack initiation based on the Gibbs free energy consideration is proposed. The theory is extended to the cases when the free surface effect and interface effect are considered.
T. Mura, S. Qin, H. Fan
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Nonarbitrary Crack Size Concept for Fatigue Crack Initiation
2005Abstract This appendix presents an analytical model that estimates damage rates for both crack initiation and propagation mechanisms. The model provides a nonarbitrary definition of fatigue crack initiation length, which serves as an analytical link between initiation and propagation analyses and appears to have considerable merit in ...
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Multiaxial Fatigue Crack Initiation in Rubber
Tire Science and Technology, 2001Abstract This paper describes a new model for predicting multiaxial fatigue crack initiation in rubber. The work is motivated by a need to predict crack initiation life in tires, based on strain histories obtained via finite element analysis.
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Intergranular Fatigue Crack Initiation in Polycrystalline Copper
SSRN Electronic Journal, 2022Alice Chlupová +3 more
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Probabilistic Simulation of Fatigue Crack Initiation
2001Abstract : Many fatigue-related studies have been conducted on the workhorse alloys for airframe construction over the past 20-30 years. The body of empirical knowledge related to establishing relationships between loading conditions and fatigue life or fatigue crack growth rates, including environmental effects is vast.
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Fatigue Crack Initiation—Propagation Reliability Model
Journal of Materials in Civil Engineering, 1991The paper presents a probabilistic model for fatigue strength that includes both the initiation and propagation phases, and is suitable for inclusion of formal reliability analyses. This method is most useful for fatigue in a fabricated structure that is expected to have a small crack initiation life and may apply to a significant body of welded joint ...
W. Scott Martin, Paul H. Wirsching
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