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 critical review and analysis of existing fatigue-crack-growth data on high-strength aluminum and titanium alloys and high strength steels has been made.
160 citations
TL;DR: In this paper, the authors investigated the growth behavior of fatigue cracks initiated at corrosion pits in laboratory coupons of 7075-T6511 aluminium alloy subjected to a transport aircraft loading spectrum.
159 citations
TL;DR: In this paper, the authors examined the fatigue-crack propagation behavior of the Cantor alloy CrMnFeCoNi under cyclic fatigue loading and found that the fracture surfaces and crack paths indicate a transition from predominantly transgranular crack propagation at room temperature to intergranular-dominated failure at lower temperature.
158 citations
TL;DR: In this paper, the micro-fracture mechanisms of an UFAF pipeline steel are investigated by in situ tensile testing in a transmission electron microscope, and the results indicate that a grain-boundary-film structure composed of martensite/austenite could significantly influence the crack propagating behavior in the UfaF steel, consequently lowering the fatigue-crack growth rate by enhancing roughness-induced crack closure during cyclic loading.
157 citations
TL;DR: In this paper, the role of crack bridging by uncracked ligaments is examined with specific emphasis on the role in the growth of fatigue cracks in metal-matrix composites, and simple analytical models are developed for such bridging induced by both overlapping cracks and by coplanar ligaments in the wake of the crack tip.
Abstract: Micro-mechanisms of crack-tip shielding associated with the growth of fatigue cracks in metalmatrix composites are examined with specific emphasis on the role of crack bridging by uncracked ligaments. Simple analytical models are developed for such bridging induced by both overlapping cracks and by coplanar ligaments in the wake of the crack tip; the models are based on respective notions of a critical tensile strain or critical crack-opening displacement in the ligament. The predicted degree of shielding derived from these mechanisms is not large, but is found to be consistent with experimental observations in high-strength P/M aluminum alloys reinforced with 15 to 20 vol pct of SiC particulate.
156 citations