Asymptotic and numerical study of a surface breaking crack subject to a transient thermal loading

• 来源期刊: 力学学报（英文版）
• 年，卷（期）: 2006,（1）
• 页码范围: 22-27
• 页数: 6页
• 语种: 英文

摘要

An asymptotic algorithm iS applied to the problem of a finite.thermo-elastic solid containing a surface breaking crack,when the exterior surface is subjected to oscillatory thermal loading.This algorithm involves the study of a model problem.An analytical and numerical study of this model problem of a thermo-elastic half space containing a surface breaking crack and subjected to oscillatory thermal loading iS presented.The crack surface is traction free.In particular,the amplitude of the stress intensity factor at the crack vertex is found as a function of the crack delpth and the frequency of thermal oscillation.