APPLYING ANSYS SOFWARE FOR PREDICTING TEMPERATURE DISTRIBUTION, DEFORMATION AND STRESS IN WELDED BUTT JOINTS

Than Van The; Tran Ngọc Thanh; Ngo Thi Thao

Than Van The Hung Yen University of Technology and Education
Tran Ngọc Thanh Hung Yen University of Technology and Education
Ngo Thi Thao Hung Yen University of Technology and Education

Keywords: Butt joint, Temperature field, GMAW, GTAW, ANSYS

Abstract

Article presents an application of ANSYS software for predicting temperature distribution, deformation and stress in welded butt joints. Both Gas Metal Arc Welding (GMAW) and Gas Tungsten Arc Welding (GTAW) are used for butt jointswelded plates and pipes, respectively. Heat source which is very difficult to calculate in fusion welding processes is determined in current work. Hence, the ANSYS is applied to create the model of welded joints and simulate the GMAW and GTAW. Results show the temperature distribution, the deformation and the stress after welding. These results that were obtained from using diffirent welding conditions were compared together to evaluate effect of welding parameters to the temperature, the deformation and the stress. They are important platform for finding an appropriate welding condition decreased welding defects as well as experimental times, leading to reduce the cost of welding.

References

Ngô Lê Thông, Công nghệ hàn điện nóng chảy, tập 1, NXB KH&KT, 2004.

Dongqing Yang, Gang Wang, Guangjun Zhang, Thermal Analysis for Single-pass Multilayer GMAW based Additive Manufacturing using Infrared Thermography, Journal of Materials Processing Technology, Vol. 244, 2017, pp 215–224.

Francois Pichot, Michel Danisa, Eric Lacoste, Yann Danis, Numerical Definition of an Equivalent GTAW Heat Source, Journal of Materials Processing Technology, Vol 213, 2013, pp 1241–1248.

E.S. Magalhães, et al. The Use of non-linear Inverse Problem and Enthalpy Method in GTAW Process of Aluminum, International Communications in Heat and Mass Transfer, Vol. 66, 2015, pp 114-121.

Arshad Alam SYED, Andreas PITTNER, Michael RETHMEIER, Amitava DE, Modeling of Gas Metal Arc Welding Process Using an Analytically Determined Volumetric Heat Source, ISIJ International, Vol. 53, 2013, pp. 698–703.

Anuj Mehta, Khushal Diddee, Riyaz Mustufa, Ojus Jain, Experimental Study to Increase the Life of Welding Nozzle, Vol. 13,2016, pp 05-09.

Chand R.R, Kim I.S, Lee J.H, Jung S.M. and Lee J.P, Numerical Studies on Residual Stress and Strain Distribution in Thick-welded Plate, Vol 5, 2012, pp 65-71.

Ismail, M.I.S, Afieq, W.M, Advances in Production Engineering & Management, Thermal Analysis on a Weld Joint of Aluminium Alloy in Gas Metal Arc Welding, Vol. 11,2016, pp 29–37.