Numerical Simulation of Multi-Pass Welding Distortion in Membrane Water-Wall

Abstract:

This work deals with the welding simulation by the Finite Element Method (FEM). For the tube plate welding structure features of Membrane water-wall, the numerical computation method is applied to do the real-time simulation research on the temperature field and stress field during the welding process. The implemented models include a moving heat source, temperature dependence of thermo-physical properties, elasto-plasticity, non-steady state heat transfer, and mechanical analysis. The thermal problem is assumed to be uncoupled from the mechanical one, so the thermal analysis is performed separately and previously to the mechanical analysis at each time step. The mechanical problem is based on the thermal history. A special treatment is performed on mechanical elements during the liquid/solid and solid/liquid phase changes to account for stress states. The established simulation analysis method of welding temperature and stress field can provide theory foundation and direction for optimizing the welding structure design and standardizing the welding parameter.

• Periodical: Advanced Materials Research (Volumes 383-390)
• Pages: 3898-3903
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.383-390.3898
• Online since: November 2011
• Authors: Xian Zhang, Sheng Li Tu, Guo Xing Tao, Zhang Feng Zhao
• Keywords: Finite Element Method (FEM), Multi-Pass Welding, Temperature Field, Welding Distortion

References

[1] Pankaj Biswas, N.R. Mandal, Parameswaran Vasu, Analysis of welding distortion due to narrow-gap welding of upper port plug, Fusion Engineering and Design, vol. 85, Aug. 2010, p.780788, doi: 10. 1016/j. fusengdes. 2010. 05. 025.

DOI: 10.1016/j.fusengdes.2010.05.025

[2] Michele Chiumenti, Miguel Cervera, Alessandro Salmi, Finite element modeling of multi-pass welding and shaped metal deposition processes, Computer Methods in Applied Mechanics and Engineering, vol. 199, Aug. 2010, pp.2343-2359.

DOI: 10.1016/j.cma.2010.02.018

[3] M. Sunar, B.S. Yilbas, K. Boran, Thermal and stress analysis of a sheet metal in welding, Journal of Materials Processing Technology，vol. 172, Feb. 2006, p.123–129, doi: 10. 1016/j. jmatprotec. 2005. 09. 008.

DOI: 10.1016/j.jmatprotec.2005.09.008

[4] Dean Deng, Hidekazu Murakawa, Wei Liang, Numerical simulation of welding distortion in large structures, Computer Methods in Applied Mechanics and Engineering, vol. 196, Sep. 2007, pp.613-4627, doi: 10. 1016/j. cma. 2007. 05. 023.

DOI: 10.1016/j.cma.2007.05.023

[5] L. -E. Lindgren, Numerical modelling of welding, Computer Methods in Applied Mechanics and Engineering, vol. 195, Oct. 2006, pp.6710-6736, doi: 10. 1016/j. cma. 2007. 05. 023.

DOI: 10.1016/j.cma.2005.08.018

[6] Marco A. Ramírez, Gerardo Trapaga, John McKelliget, A comparison between different numerical formulations for welding arc representations, Journal of Materials Processing Technology, vol. 155-156, Nov. 2004, pp.1634-1640.

DOI: 10.1016/j.jmatprotec.2004.04.313

[7] M. Chizari, S.T.S. Al-Hassani, L.M. Barrett, Experimental and numerical study of water jet spot welding, Journal of Materials Processing Technology, vol. 88, Jul. 2006, p.55–64, doi: 10. 1016/j. jmatprotec. 2007. 06. 086.

DOI: 10.1016/j.jmatprotec.2007.06.086

[8] P. Duranton, J. Devaux, V. Robin, 3D modelling of multipass welding of a 316L stainless steel pipe, Journal of Materials Processing Technology, vol. 153-154, Nov. 2004, pp.457-463, doi: 10. 1016/j. jmatprotec. 2004. 04. 128.

DOI: 10.1016/j.jmatprotec.2004.04.128