Topic
Stress concentration
About: Stress concentration is a research topic. Over the lifetime, 23250 publications have been published within this topic receiving 422911 citations.
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TL;DR: In this paper, a new format of anisotropic gradient elasticity is formulated and implemented to simulate stress concentrations in cortical bone, which is validated numerically in tests with bone fractures in the longitudinal and the transversal directions.
87 citations
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TL;DR: In this article, the effect of the material property inhomogeneity on the stress concentration factor (SCF) due to a circular hole in functionally graded panels is numerically investigated, and the results show that the SCF is reduced when Young's modulus progressively increased away from the hole.
87 citations
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TL;DR: In this paper, the authors investigated the deformation behavior and formability of AZ91 magnesium alloy with a small volume of liquid and found that excellent formability was attained at more than 773 K.
87 citations
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TL;DR: In this article, the authors investigated the effect of load biaxiality on the crack-tip region and showed that the impact of load applied parallel to the plane of the crack appears entirely in the second terms of the series representations for local stress and displacement.
87 citations
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TL;DR: In this article, three different pit shapes were assumed: round, triangle, and triangle with a notch, and the results showed that the fatigue strength of wires with the triangular pit was lower than that with a round shape.
Abstract: Fatigue tests were conducted for corroded galvanized steel wires on three corrosion levels, showing that fatigue strength of corroded wires lowers as corrosion progresses. Corrosion pits were measured on the corroded specimens, showing severer corrosion produced deeper pits in more condensed areas. Fatigue tests were then conducted for wire specimens with artificial pits whose sizes were decided by the measured corrosion pit data. Three different pit shapes were assumed: round, triangle, and triangle with a notch. The wire specimens with round pits did not break until 1 million cycles in the stress range of 400 MPa. The fatigue strength of wires with the triangular pit was lower than that with a round shape. Triangular pit specimens broke at fewer cycles for shorter pit length. The fatigue strength of wires with a notched triangle further decreased, and critical cycles did not depend on pit length. As the S-N relation of the wire specimens with triangular pits and notched triangular pits has a sim...
87 citations