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A Comparison of 3D and Axi-Symmetric Models in Pipe Welding Simulation Process

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Abstract:

In this paper, a detailed comparison of axi-symmetric and 3D pipe finite element models was carried out under the condition of same welding simulation parameters. Results showed that axi-symmetric model share similar residual stress distribution with 3D model in the condition of same heat source shape parameters. However, the stress values of the two concerned models were different. Meanwhile the scale of welding pool for 3D model was almost twice bigger than that of axi-symmetric model. Both welding experiment and simulation results of 3D model showed that peak temperature of welding pool along the welding path increased during the welding process, and welding pool width and depth also increased with the moving of heat source.

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Info:

Periodical:

Applied Mechanics and Materials (Volume 529)

Pages:

277-281

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.529.277

Citation:

Cite this paper

Online since:

June 2014

Authors:

Jie Xu*, Xiao Lei Jia, Yu Fan, Zhi Sun, An Min Liu, Chong Hao Zhang

Keywords:

3D Model, Axi-Symmetric Model, Numerical Simulation, Residual Stress, Welding Pool

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* - Corresponding Author

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