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Numerical Investigation on Induced Residual Stress of Al/Albite Metal Matrix Composites( Vol-2,Issue-12,December 2016 ) |
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Author(s): Chidanand Prasad R, Prof. K. Channakeshavalu, Prof. Krishna M |
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Keywords: |
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Composite Materials, Al/ablbite. |
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Abstract: |
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The aim of the work was to investigate residual stress formed during fabrication of Al/albite metal matrix composites (MMCs) using finite element analysis. Optical images of MMCs were extracted from scanning electron microscope (SEM) after fabrication by stir-casting. The collected images and properties were used to determine residuals stresses at the interface using COMSOL multi physics tool. The imported MMCs images modelled and meshed for 5458, 6318 and 7149 elements for 5%, 10% and 15% particle reinforced composites respectively. Geometrical and thermal constraints are applied at the boundaries and difference in temperature T 620 C as a thermal constraint. FE results in the COMSOL multi physics show that residual stress in composites material tested are in the range of 1.55 MPa to 2.84 MPa. Al/albite with 15% albite reinforcement possesses lowest residual stress formation in all 27 cases studied with value of 1.55 MPa. |
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