Transactions of the Korean Society of Mechanical Engineers A (대한기계학회논문집A)
- Volume 22 Issue 1
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- Pages.160-169
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- 1998
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- 1226-4873(pISSN)
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- 2288-5226(eISSN)
DOI QR Code
Analysis of small surface crack growth of round bar under rotary bending stress
회전굽힘응력하에서 환봉재의 미소표면균열의 성장거동해석
- Oh, Hwan-Seop (Dept.of Mechanical Engineering, Kyunghee University) ;
- Lee, Byeong-Gwon (Graduate School of Kyunghee University) ;
- Park, Cheol-Hui (Graduate School of Kyunghee University)
- Published : 1998.01.01
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.
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