Implementation of a Viscoplastic Model for a Plasma Sprayed Ceramic Thermal Barrier Coating

[+] Author and Article Information
Wangang Xie, Kevin P. Walker, Eric H. Jordan, Maurice Gell

University of Connecticut, Storrs, CT 06268

J. Eng. Mater. Technol 125(2), 200-207 (Apr 04, 2003) (8 pages) doi:10.1115/1.1562952 History: Received August 07, 2000; Revised October 30, 2002; Online April 04, 2003
Copyright © 2003 by ASME
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View of the base of the pyramidal yield surface in the Haigh-Westergard principal stress space
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Shape of the pyramidal yield surfaces when projected onto the τ11–τ22 stress plane
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Tension and compression test at 1204°C (2200°F)
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Compression creep test at 1204°C (2200°F)
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Strain rate dependence of the ceramic at 1204°C (2200°F)
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Variation of the volumetric strain vs. the axial strain for an associated flow law with c1*=−c1=−1/(3ρτc)
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Variation of the volumetric strain versus the axial strain for c1*=−c1/2 and c1*=−c1/10




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