Image-based extended finite element modeling of thermal barrier coatings

Michlik, P., and Berndt, C. (2006) Image-based extended finite element modeling of thermal barrier coatings. Surface and Coatings Technology, 201 (6). pp. 2369-2380.

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DOI: 10.1016/j.surfcoat.2006.04.003

View at Publisher Website: http://dx.doi.org/10.1016/j.surfcoat.200...

Abstract

Further advances in Thermal Barrier Coating (TBC) design are linked with the evolution of numerical models for TBCs. The present paper, therefore, enhances the idea of a currently available FEM package (OOF) that has been designed for microstructural level simulations. The approach of Extended FEM (XFEM) is incorporated in an in-house developed program to account for the existence of cracks in TBCs; both for stress–strain analysis and for heat transfer analysis. The new XFEM program is then employed to carry out the analyses of a YSZ deposit and a multilayered TBC to predict the effective Young's moduli, the overall thermal conductivities, and to assess the fracture behavior of the coating.


Item ID:	3930
Item Type:	Article (Research - C1)
ISSN:	0257-8972
Keywords:	female choice; modelling; extended finite element analysis; thermal barrier coatings; microstructural level modeling; elastic properties; thermal conductivity
Date Deposited:	18 Nov 2009 00:29
FoR Codes:	09 ENGINEERING > 0912 Materials Engineering > 091202 Composite and Hybrid Materials @ 50% 09 ENGINEERING > 0912 Materials Engineering > 091201 Ceramics @ 50%
SEO Codes:	86 MANUFACTURING > 8610 Ceramics, Glass and Industrial Mineral Products > 861002 Ceramics @ 100%
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