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유한요소해석 후처리 기법을 이용한 용접부의 건전성 평가
이제명(JAE-MYUNG LEE),백점기(JEOM-KEE PAIK),강성원(SUNG-WON KANG),김명현(MYUNG-HYUN KIM) 한국해양공학회 2002 韓國海洋工學會誌 Vol.16 No.4
In this paper, a numerical methodology for health monitoring of weldment was proposed using finite element method coupled with continuum damage mechanics. The welding-induced residual stress distribution of T-joint weldment was calculated using a commercial finite element package SYSWELD+. The distribution of latent damage was evaluated from the stress and strain components taken as the output of a finite element calculation. Numerical examples were given to demonstrate the usefulness of this so-called "post-processing approach" in the case of welding-induced damage assessment.