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 paper, an ultrasonic nanocrystal surface modification (UNSM) treatment was applied to improve the fatigue strength of typical SUS304 austenite stainless steel, and a gradient nanocrystalline plastic deformation layer with increased hardness was created at the specimen surface after UNSM treatment.
Abstract: An ultrasonic nanocrystal surface modification (UNSM) treatment was applied to improve the fatigue strength of typical SUS304 austenite stainless steel. A gradient nanocrystalline plastic deformation layer with increased hardness was created at the specimen surface after UNSM treatment. The average grain size at the top surface was refined to a few nanometers, and the whole thickness of the plastic deformation layer was ~ 30 to 200 μm, depending on the various treatment conditions. The hardened surface layer was assumed to be the main reason for the improvement in the fatigue strength. The increase in the fatigue strength was related to the UNSM applied static loads. In this work, it was found that a static load of 90 N was optimum to obtain a large cycle fatigue strength limit. Plastic deformation (strain)-induced martensitic transformations were also observed in the surface layer. The mechanism for further grain refinement based on martensitic transformations is discussed.
89 citations
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TL;DR: In this paper, the authors present results of an investigation carried out to analyze the flexural fatigue performance of concrete beams made with 100% Coarse Recycled Concrete Aggregates (RCA) and its comparison with that of concrete made with coarse natural aggregates (NA).
89 citations
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TL;DR: In this paper, the meaning of fatigue under variable-amplitude loading for full-scale fatigue tests, and fatigue of riveted joints in relation to ageing aircraft are discussed.
89 citations
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TL;DR: In this paper, the advanced fabrication of in-situ dendrite/metallic glass matrix (MGM) composites is reviewed, where semi-solid processing and Bridgman solidification are two methods, which can make the dendrites homogeneously dispersed within the metallic glass matrix.
89 citations
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TL;DR: In this paper, the effect of cyclic fatigue and hysteresis on the performance of NBR rubber was investigated by applying the Ogden's model and a continuum damage model was used to investigate the fatigue damage behavior for elastomers.
88 citations