Image-based extended finite element modeling of thermal barrier coatings

被引：49

作者：

Michlik, P.

Berndt, C. ^{[1
]}

机构：

[1] James Cook Univ N Queensland, Sch Engn, Townsville, Qld 4811, Australia

[2] SUNY Stony Brook, Dept Mat Sci & Engn, Stony Brook, NY 11794 USA

来源：

SURFACE & COATINGS TECHNOLOGY | 2006年 / 201卷 / 06期

关键词：

extended finite element analysis; thermal barrier coatings; microstructural level modeling; elastic properties; thermal conductivity;

D O I：

10.1016/j.surfcoat.2006.04.003

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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 (0017) 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. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：2369 / 2380

页数：12

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