대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)
- 제22권1호
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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
회전굽힘응력하에서 환봉재의 미소표면균열의 성장거동해석
Analysis of small surface crack growth of round bar under rotary bending stress
- 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)
- 발행 : 1998.01.01
초록
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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