Topic
Fatigue limit
About: Fatigue limit is a research topic. Over the lifetime, 20489 publications have been published within this topic receiving 305744 citations. The topic is also known as: endurance limit & fatigue strength.
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TL;DR: In this article, the loading frequency and amplitude of the sandstone samples obtained from a rockburst prone coal mine and studied under dynamic uniaxial cyclic loading in the laboratory is presented.
310 citations
TL;DR: In this article, the fatigue response of electrodeposited nanocrystalline pure Ni and a cryomilled ultra-fine-crystalline Al-Mg alloy was studied.
305 citations
TL;DR: In this paper, the S-N curve obtained from cantilever-type rotary bending fatigue tests using hourglass-shaped specimens of high carbon-chromium bearing steel was characterized as a duplex S −N curve composed of two different S − N curves corresponding to the respective fracture modes.
Abstract: The S–N curve obtained from cantilever-type rotary bending fatigue tests using hour-glass-shaped specimens of high carbon-chromium bearing steel clearly distinguished the fracture modes into two groups each having a different crack origin. One was governed by crystal slip on the specimen surface, which occurred in the region of short fatigue life and a high stress amplitude level. The other was governed by a non-metallic inclusion at a subsurface level which occurred in the region of long fatigue life and low stress amplitude. The inclusion developed a fish-eye fracture mode that was distributed over a wide range of stress amplitude not only below the fatigue limit defined as the threshold for fracture due to the surface slip mode but also above the fatigue limit. This remarkable shape of the S–N curve was different from the step-wise one reported in previous literature and is characterized as a duplex S–N curve composed of two different S–N curves corresponding to the respective fracture modes. From detailed observations of the fracture surface and the fatigue crack origin, the mechanisms for the internal fracture mode and the characteristics of the S–N curve are discussed.
304 citations
TL;DR: In this paper, the authors studied the mechanical fatigue of NiTi shape memory alloys and found that the fatigue limit is lower than predicted from the phenomenological law relating growth rates to the elastic modulus.
304 citations
TL;DR: In this paper, the impact of two different additive manufacturing routes, i.e., selective electron beam melting (EBM) and selective laser melting (SLM), on the fatigue life of the titanium alloy Ti-6Al-4V in the very high cycle fatigue (VHCF) regime was reported.
301 citations