Crack propagation behavior based on the characteristic of the interaction between two fatigue cracks |
| |
Authors: | Sam-Hong Song Byoung-Ho Choi Jun-Soo Bae |
| |
Affiliation: | (1) Dept. of Mechanical Engineering, Korea University, Korea;(2) Graduate School, Korea University, Korea |
| |
Abstract: | Stress interaction fields, which are caused by propagating cracks and other defects, can weaken structures. In this study,
crack behavior in the interaction field caused by two different cracks is experimentally studied. In the experiment, the vertical
distance between two cracks and the applied stresses are varied to craate different stress interaction fields. In addition,
the effect of the plastic zone is used to examine the crack propagation path and rate. Three types of crack propagation in
the interaction field were found, and the crack propagating path and rate of two cracks were significantly affected according
to different applied stresses as each crack propagates. These results are attributed to the effect of the size and shape of
the plastic zone. |
| |
Keywords: | Crack Interaction Fatigue Life Plastic Zone Crack Propagation Rate Finite Element Analysis Crack Propagation Path |
本文献已被 SpringerLink 等数据库收录! |
|