Topic
Paris' law
About: Paris' law is a research topic. Over the lifetime, 13815 publications have been published within this topic receiving 224818 citations. The topic is also known as: Paris-Erdogan law.
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TL;DR: In this paper, a study of the influence of load ratio R on fatigue crack propagation behavior and specifically on the value of the fatigue crack growth threshold, Δ K 0, in a bainitic 2.25 Cr-1Mo pressure vessel steel tested at 50 Hz in aqueous, and moist and dry gaseous environments.
102 citations
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TL;DR: In this article, an investigation of fatigue crack growth of interfacial cracks in bi-layered materials using the extended finite element method is presented, which reveals that the crack propagates into the FGM layer under all types of loads.
Abstract: An investigation of fatigue crack growth of interfacial cracks in bi-layered materials using the extended finite element method is presented. The bi-material consists of two layers of dissimilar materials. The bottom layer is made of aluminium alloy while the upper one is made of functionally graded material (FGM). The FGM layer consists of 100 % aluminium alloy on the left side and 100 % ceramic (alumina) on the right side. The gradation in material property of the FGM layer is assumed to be exponential from the alloy side to the ceramic side. The domain based interaction integral approach is extended to obtain the stress intensity factors for an interfacial crack under thermo-mechanical load. The edge and centre cracks are taken at the interface of bi-layered material. The fatigue life of the interface crack plate is obtained using the Paris law of fatigue crack growth under cyclic mode-I, mixed-mode and thermal loads. This study reveals that the crack propagates into the FGM layer under all types of loads.
102 citations
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TL;DR: In this article, a fatigue model based on the crack growth was developed and validated with experiments to develop a model for life prediction of foam core sandwich beams in a three-point flexure mode.
102 citations
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TL;DR: In this article, a number of modifications to the Wheeler fatigue crack retardation model were proposed to account for the delay retardation due to applied overloads, initial crack growth acceleration immediately following an overload, overload interaction and the net section yielding effect observed in the fatigue crack growth retardation behaviour of many materials.
102 citations
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TL;DR: In this paper, the authors investigated the fatigue crack growth behavior of cracked aluminum plate repaired with bonded composite patch especially in thick plate and determined the stress intensity factor of patched crack from experimental result by comparing the crack growth behaviour of specimens with and without repair.
101 citations