Surface thermal shock cracking of a semi-infinite medium: a nonlocal analysis

被引：0
|
作者：
D. M. Chang
B. L. Wang
机构：
[1] Tianjin University of Technology and Education,Tianjin Key Laboratory of High Speed Cutting and Precision Machining
[2] University of Western Sydney,Institute for Infrastructure Engineering
来源：
Acta Mechanica | 2015年 / 226卷
关键词：
Fracture Toughness; Thermal Shock; Thermal Shock Resistance; Crack Growth Behavior; Nonlocal Parameter;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This article applies the nonlocal differential elasticity theory to the thermal shock cracking of semi-infinite media. The dynamic temperature field and the nonlocal thermal stress without crack are obtained exactly in terms of the nonlocal parameter of the materials. The thermal stress intensity factor is solved through an integral expression. Effects of the thermal shock time, crack length, depth below the medium surface and nonlocal parameter are discussed in detail. The crack growth behavior is also studied in terms of the relationship between the crack length and thermal shock time. Strong dependence of the thermal cracking behavior on the nonlocal parameter of the material is noted.
引用
收藏
页码：4139 / 4147
页数：8
相关论文
共 50 条
12345