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TECHNICAL PAPERS

Elastoplastic Modeling of Metal Matrix Composites Containing Randomly Located and Oriented Spheroidal Particles

[+] Author and Article Information
L. Z. Sun

Department of Civil and Environmental Engineering, The University of Iowa, Iowa City, IA 52242-1527 e-mail: lizhi-sun@uiowa.edu

J. W. Ju

Department of Civil and Environmental Engineering, University of California, Los Angeles, CA 90095-1593

J. Appl. Mech 71(6), 774-785 (Jan 27, 2005) (12 pages) doi:10.1115/1.1794699 History: Received August 20, 2002; Revised December 29, 2003; Online January 27, 2005
Copyright © 2004 by ASME
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References

Figures

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(a) A composite containing randomly dispersed and randomly oriented spheroidal particles, and (b) the sketch of a spheroid
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Transformation between local coordinate system xi and global coordinate system xj
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The overall (a) bulk modulus and (b) shear modulus of composites with randomly located and oriented harder particles as a function of the volume fraction and aspect ratio of particles
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The overall (a) bulk modulus and (b) shear modulus of composites with randomly located and oriented softer particles as a function of the volume fraction and aspect ratio of particles
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The comparisons between the present predictions and the Ponte Castaneda-Willis bounds 15 for (a) effective shear modulus of composites with randomly oriented spheroidal rigid particles and (b) effective shear modulus of porous materials with randomly oriented spheroidal voids
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Comparison between the present predictions and the experimental Young’s moduli of SiCp/Al composites (Yang et al., 44)
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Effects of (a) volume fraction, (b) aspect ratio, and (c) Young’s modulus of particles on the uniaxial elastoplastic behavior of randomly oriented particle-reinforced MMCs
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Comparison between the model predictions and the experimental data of uniaxial elastoplastic behavior of randomly oriented particle-reinforced MMCs
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Effects of (a) volume fraction and (b) aspect ratio of particles on the overall initial yield surfaces of randomly oriented particle-reinforced MMCs
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Effects of stress ratio R on the overall elastoplastic behavior of randomly oriented particle-reinforced MMCs under axisymmetric loading

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