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Analysis of small surface crack growth of round bar under rotary bending stress
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 Title & Authors
Analysis of small surface crack growth of round bar under rotary bending stress
Oh, Hwan-Seop; Lee, Byeong-Gwon; Park, Cheol-Hui;
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 Abstract
The purpose of this study for the prediction of fatigue crack propagation behavior, Stress Intensity Factor(F) of round bar with 3-Dimensional half circular, semi-elliptical icro surface crack under rotary bending stress for the variable aspect, size, rotation angle was analyzed by Boundary Element Method (BEM). It is predicted that behavior of crack growth is half circular or circular crack (b/a.geq.1) and propagate to b/a.leq.0.85.
 Keywords
Rotary Bending;Boundary Element Method;Stress Intensity Factor;Surface Micro-crack growth;
 Language
Korean
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