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
收藏
页码：2369 / 2380
页数：12
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