A crack in a finite medium under transient non-Fourier heat conduction

被引：30

作者：

Wang, B. L. ^{[1
]}

Han, J. C.

机构：

[1] Harbin Inst Technol, Grad Sch Shenzhen, Harbin 150001, Peoples R China

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2012年 / 55卷 / 17-18期

基金：

美国国家科学基金会;

关键词：

Crack; Non-Fourier heat conduction; Thermal flow; NUMERICAL INVERSION; PHASE-LAG; BEHAVIOR; TEMPERATURE; LEQUATION;

D O I：

10.1016/j.ijheatmasstransfer.2012.04.020

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper investigates the problem of a finite crack in a material layer under the theory of non-Fourier heat conduction. The concept of thermal flow intensity factor is introduced to show the singularity of the thermal flow at the crack tip. Dependence of the crack tip thermal flow field on the thermal flow intensity factor is established in closed-form. Time-varying crack tip thermal flow intensity factors are obtained with sufficient accuracy. In addition to the single crack problem, solution technique and numerical results for the problem of two collinear cracks are given. Effects of crack length and layer thickness on the thermal flow intensity factors are discussed in detail. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：4631 / 4637

页数：7

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