균열 진전에 따른 잔류응력 재분포 해석을 위한 수치해석 모델링

Numerical Modeling for the Analysis of Residual Stress Redistribution due to Crack Propagation

As the crack grows in the residual stress fields, the distribution of the residual stress is changed. In this study, a finite element modeling technique is developed to simulate the redistribution of residual stress due to crack propagation. To certify the accuracy, the crack propagation tests were carried out and tile effective stress intensity factor range was evaluated considering the redistribution of residual stress from the FE analysis.