Publisher : The Korean Society of Mechanical Engineers
DOI : 10.22634/KSME-A.19188.8.131.52
Title & Authors
Analysis of small surface crack growth of round bar under rotary bending stress Oh, Hwan-Seop; Lee, Byeong-Gwon; Park, Cheol-Hui;
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.
Rotary Bending;Boundary Element Method;Stress Intensity Factor;Surface Micro-crack growth;