Finite Element Simulation of Temperature Distribution and Residual Stress in Single Bead on Plate Weld Trial using Double Ellipsoidal Heat Source Model
Gokulakrishnan Sriram1, V. Dhinakaran2, Jagadeesha T3, Rishiekesh Ramgopal4
1Gokulakrishnan Sriram, Department of Mechanical Engineering, Chennai Institute of Technology, Chennai (Tamil Nadu), India.
2V. Dhinakaran, Department of Mechanical Engineering, Chennai Institute of Technology, Chennai (Tamil Nadu), India.
3Jagadeesha T, Assistant Professor, Department of Mechanical Engineering, National Institute of Technology, Calicut (Kerala), India.
4Rishiekesh Ramgopal, Department of Metallurgy and Materials Engineering, National Institute of Technology, Trichy (Tamil Nadu), India.
Manuscript received on 20 May 2019 | Revised Manuscript received on 06 June 2019 | Manuscript Published on 15 June 2019 | PP: 133-138 | Volume-8 Issue-1S2 May 2019 | Retrieval Number: A00270581S219/2019©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Tungsten Inert Gas Welding of Ti-6Al-4V plate was simulated using commercial finite element code to predict temperature distribution and residual stress distribution. Because of the geometrical symmetry, only one plate was modelled to reduce the simulation computation time. The temperature dependent material properties of thermal conductivity, Specific heat, density were used for thermal transient analysis. Double ellipsoidal volumetric heat source was used as the heat source model and the heat source parameters were found out by comparing the simulation macrograph and experiment result. Heat source fitting was done using SYSWELD software and the function database was saved after achieving the macrograph similar to experimental macrograph by iteration. The transient thermal analysis was done with Welding Advisor tool which is inbuilt in the VISUAL WELD software using the database obtained from the heat source fitting. The successful completion of TIG welding of Ti-6Al-4V will prove useful in, determining the weld bead geometry, prediction of temperature distribution and residual stress distribution.
Keywords: TIG welding, Heat Source Model, Ti-6Al-4V.
Scope of the Article: Heat Transfer