Numerical Simulation of Residual Stresses in a Spot Welded Joint

[+] Author and Article Information
Xin Long, Sanjeev K. Khanna

Department of Mechanical and Aerospace Engineering, University of Missouri-Columbia, Columbia, MO 65211

J. Eng. Mater. Technol 125(2), 222-226 (Apr 04, 2003) (5 pages) doi:10.1115/1.1543968 History: Received December 07, 2001; Revised June 20, 2002; Online April 04, 2003
Copyright © 2003 by ASME
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(a) Axisymetric mode of spot welding setup (b) Finite element model for spot welding
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The simulated spot nugget shape
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Cross sectional view of the actual spot-weld, the nugget shape is shown by the white boundary
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The Principal stress (σ1) distribution during spot welding at (a) end of the welding cycle, and (b) end of the holding cycle
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Principal residual stress distribution in the spot weld: (a) principal residual stress σ1; and (b) principal residual stress σ2
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Principal residual stresses distribution at the half thickness of the spot joint
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Residual stresses in spot weld determined by high sensitivity moiré interferometry 7




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