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International Conference on Mechanical and Electrical Technology, 3rd, (ICMET-China 2011), Volumes 1–3

Yi Xie
Yi Xie
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This paper presents a three dimensional thermo-elasto-plastic analysis, using finite element techniques, to analyze the thermo mechanical behavior and evaluate the residual stresses in pipepipe joints of AISI stainless steel type. Single-pass TIG and MIG welding in pipes having a diameter of 274 mm and a thickness of 6.2 mm is studied here. Two different welding techniques are analyzed. It has been shown that selecting a suitable welding technique can modify the amount of residual stresses in this pipe geometry.

Key Words
1 Introduction
2. Modelling of Physical Phenomena
3 Heat Equation
4. Material Modelling
5. Finite Element Modelling
6. Element Birth and Death
7. Results and Discussion
8. Conclusions
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