Browse > Article

Prediction of Cutting Stress by 2D and 3D-FEM Analysis and Its Accuracy  

장경호 (중앙대학교 건설환경공학과)
이상형 (중앙대학교 토목공학과)
이진형 (중앙대학교 토목공학과)
강재훈 (중앙대학교 건축학과)
Publication Information
Journal of the Computational Structural Engineering Institute of Korea / v.16, no.3, 2003 , pp. 261-269 More about this Journal
Abstract
Steel bridges, which have been damaged by load and corrosion, need repair or strengthening. In general, before the repair welding procedure, cutting procedure carry out. Therefore, the investigating of the behavior of stress generated by cutting is so important for safety of structure. Residual stress produced by gas cutting was analyzed using 2D and 3D thermal elasto plastic FEM. According to the results, the magnitude of temperature was analyzed by 2D FEM is smaller than that was analyzed using the 3D FEM program at the start and end edge of flange. And the magnitude and distribution of residual stress of perpendicular to the cutting line was analyzed by the 2D FEM program was similar to that was analyzed by the 3D FEM program. Therefore, it is possible to predict of cutting stress by 2D and 3D FEM.
Keywords
cutting; repair; cutting stress; 3d fe analysis; elasto-plastic-analysis;
Citations & Related Records
연도 인용수 순위
  • Reference
1 You Chul KIM, Kyong Ho CHANG, Kohsuke HORIKAWA, 'Production Mechanism of Out-of -Plane Deformationin Fillet Welding', TRANSACTION OF JWRI Vol.27 No.2, 1998, pp.107 -113
2 장경호, 김재민, 이상형, '절단시 발생되는 강판의 잔류응력 특징', 대한토목학회 학술발표회 논문집, 2000, pp.177-180
3 You Chul KIM, Kyong Ho CHANG, 'Prediction of Welding Out-of-plane Deformation by 3D- FEM Analysis and Its Accuracy', The 76th JSME Fall Annual Meeting Vol.I, 1998, pp. 295-296
4 장경호, 이상형, 전준태, '공용중 보수용접에 의한 용접부의 응력 및 변형의 거동, 한국강구조학회 논문집 제 12권 3호, 2000, pp.269-279
5 일본강구조협회 기술위원회 안전성 분과회 내화소위원회 고온강도반:구조용강재의 고온시 및 가열후의 기계적 성질 목차
6 장경호, 이상형, 이진형 '3차원 유한요소해석에 의한 용접응력과 변형의 해석 및 정도', 한국전산구조공학회 학술발표회 논문집 제13권 제2집, 2000, pp.11-17
7 장경호, 김재민, 이상형, 박정웅, ' 절단시 발생되는 강판의 잔류응력 특징에 관한 연구', 대한용접학회 학술발표회 논문집, 2000, pp.106-109