This paper describes the implementation and modification of a previously proposed unified viscoplastic constitutive model to simulate the behavior of a Yttria Stabilized Zirconia plasma sprayed thermal barrier coating. The model was recast for use in finite strain situations and modified to have a more physically acceptable non-associated flow rule. Temperature dependent material constants were found for a specific material using a novel approach based on Genetic Algorithms.
Implementation of a Viscoplastic Model for a Plasma Sprayed Ceramic Thermal Barrier Coating
Contributed by the Materials Division for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received by the Materials Division August 7, 2000; revision received October 30, 2002. Associate Editor: E. Busso.
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Xie , W., Walker , K. P., Jordan , E. H., and Gell , M. (April 4, 2003). "Implementation of a Viscoplastic Model for a Plasma Sprayed Ceramic Thermal Barrier Coating ." ASME. J. Eng. Mater. Technol. April 2003; 125(2): 200–207. https://doi.org/10.1115/1.1562952
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