3-D thermal modelling applied to stress-induced anisotropy of thermal conductivity

被引：14
作者：
Pron, H [1 ]
Bissieux, C [1 ]
机构：
[1] Univ Reims, Unite Therm & Anal Phys, EA 2061, Lab Thermophys,URCA,UTAP,LPT,UFR Sci, F-51687 Reims 2, France
来源：
INTERNATIONAL JOURNAL OF THERMAL SCIENCES | 2004年 / 43卷 / 12期
关键词：
anisotropic conductivity; mechanical stress; thermal modelling; lock-in detection; photothermal thermography; non-destructive testing;
D O I：
10.1016/j.ijthermalsci.2004.04.006
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The present work consists in the development of a three-dimensional model of heat diffusion in orthotropic media, based on numerical Fourier transforms, and taking into account the extent of the source. This model has been applied, together with a Gauss-Newton parameter estimation procedure, to identify the components of the conductivity tensor of a steel bar under uniaxial loading. Few percent variations of the conductivity components have been observed for applied stresses remaining in the elastic domain. (C) 2004 Elsevier SAS. All rights reserved.
引用
收藏
页码：1161 / 1169
页数：9
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