한국해양공학회:학술대회논문집 (Proceedings of the Korea Committee for Ocean Resources and Engineering Conference)
- 한국해양공학회 2006년 창립20주년기념 정기학술대회 및 국제워크샵
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- Pages.189-192
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- 2006
유한요소해석을 이용한 Channel I butt SA 용접부 변형 해석에 관한 연구
A Study on Welding Distortion of Channel I Butt SA Weld using FE Analysis
- Shin, Dae-Hee (Hyundai Heavy Industry Co. Ltd.) ;
- Shin, Sang-Beam (Hyundai Heavy Industry Co. Ltd.) ;
- Lee, Joo-Sung (Ulsan Univ. Ltd.)
- 발행 : 2006.11.16
초록
The purpose of this study is to evaluate the welding distortion at the channel I butt SA weldment. In order to do it, the heat input model for the weldment was defined as combined heat source with the surface heat flux of gaussian mode and volume heat source uniformly distributed within weld groove on the basis of comparing the shapes of molten pool and temperature distribution obtained by FEA and experiment. The arc efficiency of SA welding for 2 dimensional FE analysis was determined as 0.85. The results of welding distortions at the weldment obtained by FEA and heat input conditions proposed have a good agreement with those obtained by experiment. Based on the results, it was suggested that the proper heat input model should be required to evaluate the welding distortion for weldment.
키워드