Volume 20, Issue 1 (March 2023)                   IJMSE 2023, 20(1): 1-18 | Back to browse issues page

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Ebrahimpour A, Mostafapour A, Hagi N. 3D Coupled Thermal-Electrical-Structural Finite Element Investigation on the Effect of Welding Parameters on the Geometry of Nugget Zone and HAZ in RSWed TRIP Steel Joints. IJMSE 2023; 20 (1) :1-18
URL: http://ijmse.iust.ac.ir/article-1-2916-en.html
Abstract:   (4453 Views)
In this research, the effect of RSW parameters including current intensity, welding time and welding force (coded by A, B and C) on the radius, thickness and area of ​​the nugget and the radius of the HAZ of TRIP steel joints was investigated by DOE and RSM. A 3D coupled thermal-electrical-structural FEM was used to model RSW. To validate the FE model, two TRIP steel sheets were welded experimentally. During welding, the temperature was measured and the results were compared with the FE results and a good agreement was obtained. The boundaries of the welding zones were determined according to the critical temperatures and the responses in all samples were calculated. Using analysis of variance, direct, quadratic and interaction effects of parameters on the responses were studied and a mathematical model was obtained for each response. The direct linear effects of all parameters on all responses were significant. But among the interaction effects, the effect of B×C on the nugget radius, the effect of A×B on the nugget thickness, the effect of A×B on the nugget area and the effects of A×B and B×C on the HAZ radius were significant.  Also, current intensity had the greatest effect on all responses.
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Type of Study: Research Paper | Subject: Biomaterials

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