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Abstract
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Article Information:
Prediction of Welding Deformation and Residual Stresses in Fillet Welds Using Indirect Couple Field FE Method
Asifa Khurram, Li Hong, Li Li and Khurram Shehzad
Corresponding Author: Asifa Khurram
Submitted: September 13, 2012
Accepted: September 19, 2012
Published: March 25, 2013 |
Abstract:
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Fillet welds are extensively used in shipbuilding, automobile and other industries. Heat concentrated at a small area during welding induces distortions and residual stresses, affecting the structural strength. In this study, indirect coupled-field method is used to predict welding residual stresses and deformation in a fillet joint due to welding on both sides. 3-D nonlinear thermal finite element analysis is performed in ANSYS software followed by a structural analysis. Symmetrical boundary conditions are applied on half of the model for simplification. Results of FE structure analysis predict residual stresses in the specimen. A comparison of simulation results with experimental values proves the authenticity of the technique. The present study can be extended for complex structures and welding techniques.
Key words: Couple field, finite element method, fillet weld, residual stresses, symmetrical boundary condition, ,
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Cite this Reference:
Asifa Khurram, Li Hong, Li Li and Khurram Shehzad, . Prediction of Welding Deformation and Residual Stresses in Fillet Welds Using Indirect Couple Field FE Method. Research Journal of Applied Sciences, Engineering and Technology, (10): 2934-2940.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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