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TECHNICAL PAPERS

Mechanical and Thermomechanical Elastic-Plastic Contact Analysis of Layered Media With Patterned Surfaces

[+] Author and Article Information
Z.-Q. Gong, K. Komvopoulos

Department of Mechanical Engineering, University of California, Berkeley, CA 94720

J. Tribol 126(1), 9-17 (Jan 13, 2004) (9 pages) doi:10.1115/1.1609487 History: Received December 18, 2002; Revised June 10, 2003; Online January 13, 2004
Copyright © 2004 by ASME
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References

Figures

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Contours of equivalent plastic strain in the layered medium for μ=0.5,d/R=0.005, and S/R equal to (a) 0, (b) 0.07, (c) 0.12, (d) 0.17, (e) 0.24, and (f ) 0.48. (The arrow indicates the direction of the sliding rigid sphere.)
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(a) Maximum von Mises equivalent stress in the first (hard) layer and (b) maximum equivalent plastic strain in the second (soft) layer versus sliding distance for three sequential sliding cycles, μ=0.1, and d/R=0.005
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(a) Maximum von Mises equivalent stress in the first (hard) layer and (b) maximum equivalent plastic strain in the second (soft) layer versus sliding distance for μ=0.1 and d/R=0.005 and 0.01
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Surface temperature rise at individual neighboring pads on the plane of symmetry (y=0) for μ=0.5,d/R=0.01,Pe=0.09, and S/R equal to (a) 0, (b) 0.07, (c) 0.17, (d) 0.24, (e) 0.31, and (f ) 0.48
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Maximum temperature in (a) first (hard) layer and (b) second (soft) layer versus sliding distance and Peclet number for μ=0.5 and d/R=0.01
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Maximum equivalent plastic strain in the second (soft) layer versus sliding distance and Peclet number for μ=0.5 and d/R=0.01
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Three-dimensional finite element mesh of a layered medium with a patterned surface. (The inset at the top shows the detail of the refined mesh of each pad.)
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Contact pressure distribution at a single pad in the symmetry plane (y=0) for different indentation depths. (Initial contact of the indenting rigid sphere occurs at the center of the pad surface (x/b=0).)
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(a) Maximum von Mises equivalent stress in the first (hard) layer and (b) real contact area versus indentation depth
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(a) Maximum contact pressure and (b) maximum equivalent plastic strain in the second (soft) layer versus sliding distance for μ=0.1 and 0.5 and d/R=0.005

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