The Finite Element Analysis for Comparision of Residual Stress at Cold Expansion Method and Interfernce Fit

홀확장법과 억지끼워맞춤의 잔류응력 비교를 위한 유한요소해석

The purpose of this study is comparing cold expansion method with interference fit. Cold expansion method and interference fit of fastener hole is using in the aerospace industry. These treatment lead to an improvement of fatigue life to the compressive residual stresses developed on the hole surface. But Research is nothing to about difference effect of between cold expansion method and interference fit. So In this paper, It is shown that Comparing cold expansion method with interference fit. and It is further shown that residual stress distribution according to plate thickness.