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, the onset of damage accumulation in ceramic-matrix composites occurs as matrix microcracking and fiber/matrix debonding and tension tests were used to determine the stress and strain levels to first initiate micro-cracking in both unidirectional and cross-ply laminates of silicon carbide fiber-reinforced aluminosilicate glass.
Abstract: The onset of damage accumulation in ceramic-matrix composites occurs as matrix microcracking and fiber/matrix debonding. Tension tests were used to determine the stress and strain levels to first initiate microcracking in both unidirectional and cross-ply laminates of silicon carbide fiber-reinforced aluminosilicate glass. Tension–tension fatigue tests were then conducted at stress levels below and above the matrix cracking stress level. At stress levels below matrix microcracking, no loss in stiffness occurred. At stresses above matrix cracking, the elastic modulus of the unidirectional specimens exhibited a gradual decrease during the first 10 000 cycles, and then stabilized. However, the cross-ply material sustained most of the damage on the first loading cycle. It is shown that fatigue life can be related to nonlinear stress–strain behavior of the 0° plies, and that the cyclic strain limit was approximately 0.3%.
110 citations
TL;DR: In this article, the defect-tolerant design of SLM Ti-6Al-4V alloy was evaluated in terms of the defect population using a combination of the statistics of extremes and the Murakami model.
110 citations
TL;DR: In this article, the fracture and fatigue behavior of a Zr-based metallic glass composite was analyzed and the fracture resistance and fatigue endurance limit was significantly higher than that of the matrix material.
110 citations
TL;DR: In this article, the recent progress on the fatigue properties of Ti-6Al-4V cellular structures fabricated by the additive manufacturing technique is reviewed and various design factors including cell shapes, surface properties, post treatments and graded porosity distribution are introduced and future development trends are also discussed.
110 citations
TL;DR: The results showed that the use of a non-bonded, non-linear Coulomb friction interface resulted in substantially different stress fields in the cement when compared to a bonded stem-cement interface.
110 citations