A methodology to model the complex morphology of rough interfaces

INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES

卷:51

Article

Maurel, V.¹  Busso, E. P.²  Frachon, J.¹  Besson, J.¹  N'Guyen, F.¹ 

[1] PSL Res Univ, MINES ParisTech, MAT Ctr Mat, CNRS UMR 7633, F-91003 Evry, France

[2] Off Natl Etud & Rech Aerosp, F-91123 Palaiseau, France

关键词: Interface morphology;    Image correlation;    Thermal barrier coatings;    Finite element modelling;   

DOI  :  10.1016/j.ijsolstr.2014.04.015

来源: Elsevier

【 摘 要 】

A methodology is proposed to model the complex morphology of rough interfaces using Fourier techniques and image analysis. It allows an optimal representation of a rough interface so as to enable a realistic calculation of the local stress and strain fields in the interface vicinity using finite element techniques. The methodology is illustrated through a sensitivity analysis carried out on a thermal barrier coating system. Typical bi-material interfaces with different levels of morphological complexity are described in 2D and 3D using both periodic (sinusoidal) and Fourier functions. The results are discussed in terms of their relative accuracy. (C) 2014 Elsevier Ltd. All rights reserved.

【 授权许可】

Free