이종마찰압접 계면근방에서의 피로균열의 전파거동 및 해석

Analysis and Propagation Behavior of Dissimilar Friction Welded Materials for Fatigue Crack in around Interface

  • 발행 : 1998.10.01

초록

In this study, analysis for fatigue crack propagation behavior of interface and aroud interface under rotary bending stress. Though K values are nearly the same in around interface by BEM 2-D, fatigue crack propagated H.A.Z. Around Interface crack propagation speed is m=0.678 in H.A.Z by Paris' law. In this case(friction welded materials: STS304, SM15C), fatigue crack growth is considered SM15C metal microstructure and elastic flow from this result. Result is more metal microstructute dependence than stress dependence by analysis (BEM 3-D, BEM 2-D) and fatigue crack propagation

키워드