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Research on numerical welding experiment of a thick spherical shell structure
Info
- Title:
- Research on numerical welding experiment of a thick spherical shell structure
- Author(s):
- LIU Xiang-dong YAO Xiong-liang PANG Fu-zhen
- Affilations:
- DOI:
- -
- Abstract:
- In this paper,in order to predict the residual deformation of thick spherical structure,a welding program is compiled in APDL language based on Ansys and a numerical welding experiment of a welding example is carried out.The temperature field of welding was simulated firstly, then a thermal-structure coupling analysis was carried out,and at last the residual stress and deformation after welding were got.After that,the numerical experiment result was compared with physical experiment one.The comparative analysis shows that the numerical simulation fits well with physical experiment.On the basis of that,a three-dimensional numerical experiment of a thick spherical shell structure was carried out to get the changing rule of stress and deformation of a thick spherical shell structure during welding. The research is of great value to the prediction of residual deformation and high precision machining.
References:
1. WU Chuansong Numerical analysis of welding process 1990
2. DONG Zhibo.WEI Yanhong.LIU Renpei.DONG Zujue Three dimensional numerical simulation of stainless steel welding temperature 2004(02)
3. LU Anli.SHI Qingyu.ZHAO Haiyan Three dimensional FEM numerical simulation of the temperature field and stress field of thick half welding process 2001(02)
4. ZHANG Hua.PAN Jiluan 3D simulation of computer for weld temperature field based on 2D measurement 1999(04)
5. JANG C D.LEE C H.KO D E Prediction of welding deformations of stiffened panels 2002(02)
6. LADAYI D Welding thermal effect residual stress and deformation on temperature field 1997
Memo
- Memo:
- -
Last Update:
2010-06-22