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TECHNICAL PAPERS

A Finite Element Model for Spherical Debris Denting in Heavily Loaded Contacts

[+] Author and Article Information
Young Sup Kang, Farshid Sadeghi

School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907-1288

Mike R. Hoeprich

The Timken Company, 1835 Dueber Avenue, S.W., Canton, OH 44706

J. Tribol 126(1), 71-80 (Jan 13, 2004) (10 pages) doi:10.1115/1.1609483 History: Received July 02, 2002; Revised April 23, 2003; Online January 13, 2004
Copyright © 2004 by ASME
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References

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Figures

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Schematic of dry contact with a debris particle and forces applied: (a) two cylinders in contact; and (b) debris forces
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Elastic-linear-kinematic hardening plastic (ELKP) stress-strain relationship
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Finite element model of cylinders in contact with a spherical debris: (a) side view; and (b) perspective view.
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Deformed debris shape (saucer shape debris): (a) perspective view; (b) side view; and (c) top view
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Schematic of DCM computational domain
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Debris denting process: debris and mating surface deformation and internal stresses
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Debris deformation at each time step during the denting process (FEM)
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Effects of material properties on debris dent shape
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Effects of friction coefficient on debris dent shape
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Effects of debris size on debris dent shape
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Effects of applied load on debris dent shape
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Aspect ratio of the debris obtained from the FE model under various operating conditions
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Contact pressure and debris deformation at different time steps as it passes through the contact: (a) θ=1; (b) θ=5; and (c) θ=9
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Pressure and surface deformation at different steps (DCM, perspective view): (a) θ=1; (b) θ=5; and (c) θ=9
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Comparison of debris load ratios at different debris locations obtained from FEM and DCM

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