Abstract
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Article Information:
Investigation of Creep Phenomenon in Metal Matrix Composites with Whiskers
Vahid Monfared
Corresponding Author: Vahid Monfared
Submitted: May 16, 2012
Accepted: June 08, 2012
Published: September 15, 2012 |
Abstract:
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A new mathematical model based on the exponential, logarithmic and polynomial (mixed)
functions is presented for determination of some unknowns such as displacement rate in outer surface of
unit cell and strain rate of short fiber (whisker) composites with elastic fiber in steady state creep under
axial loading. In addition, effective factor or effect coefficient is introduced for determination of creep
displacement rate in outer surface. Also, radial, axial displacement rates, equivalent and shear stresses will
be determined by new method. Aim of this study is using the mathematical modeling instead of time
consuming and costly experimental methods. On the other hand, unknowns are determined by polynomial,
exponential and logarithmic functions instead of some theories, simply. These analytical results are then
validated by the Finite Element Analysis (FEA). Interestingly, good agreements are
found between analytical and numerical predictions for creep strain rate and displacement rate.
Key words: Composite, effective factor, mathematical model, mixed functions, steady state creep, whisker,
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Abstract
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Cite this Reference:
Vahid Monfared, . Investigation of Creep Phenomenon in Metal Matrix Composites with Whiskers. Research Journal of Applied Sciences, Engineering and Technology, (18): 3516-3521.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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