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, an extensive fatigue experiments were conducted using 7075-T651 aluminum alloy under uniaxial, torsion, and axial-torsion loading.
238 citations
TL;DR: In this article, two post-weld treatments, UIT and shot peening, are involved in the present study, and the experimental conditions and the results of these stress measurements are presented.
235 citations
TL;DR: In this paper, the authors investigate the dynamic cut growth behavior of vulcanized rubbers and show that there is a minimum tearing energy at which mechanical rupture of chains occurs, which is in the region of 0.05 kg/cm.
Abstract: Investigations of the dynamic cut growth behavior of vulcanized rubbers indicate that there is a minimum tearing energy at which mechanical rupture of chains occurs. The limiting value is characteristic of each vulcanizate, but is in the region of 0.05 kg./cm. The mechanical fatigue limit, below which the number of cycles to failure increases rapidly, is accurately predicted from this critical tearing energy. Characteristics of cut growth at low tearing energies, and effects of polymer, vulcanizing system, oxygen, and fillers on the critical tearing energy and fatigue limit are discussed.
234 citations
TL;DR: The tension-tension fatigue behavior of different natural fiber reinforced plastics was investigated in this paper, where composites used were made of flax and jute yarns and wovens as reinforcements for epoxy resins, polyester resins and polypropylene.
Abstract: The tension–tension fatigue behaviour of different natural fibre reinforced plastics was investigated. The composites used were made of flax and jute yarns and wovens as reinforcements for epoxy resins, polyester resins and polypropylene. Fibre type, textile architecture, interphase properties, fibre properties and content were found to affect the fatigue behaviour strongly as illustrated with damping versus applied maximum load curves. It was found that natural fibre reinforced plastics with higher fibre strength and modulus, stronger fibre–matrix adhesion or higher fibre fractions possess higher critical loads for damage initiation and higher failure loads. In addition, damage propagation rates were reduced. Furthermore, unidirectional composites were less sensitive to fatigue induced damage than woven reinforced ones.
231 citations
TL;DR: In this paper, an energy criterion for fatigue failure is proposed, based on a relation between stress amplitude and the number of cycles to failure which utilizes only material properties obtained from the static true stress-strain tension test.
Abstract: In this paper an energy criterion for fatigue failure is postulated. Microplastic strain hysteresis energy is considered to be an index for fatigue damage. On this basis, a relation is developed between stress amplitude and the number of cycles to failure which utilizes only material properties obtained from the static true stress-strain tension test. The analysis is found to compare well with an experimentally determined S-N curve for SAE 4340 steel.
230 citations