Dynamic behavior of rectangular crack in three-dimensional orthotropic elastic medium by means of non-local theory

被引：0
|
作者：
Haitao LIU [1 ]
Zhengong ZHOU [2 ]
机构：
[1] School of Mechanical Engineering, Hebei University of Technology
[2] Center for Composite Materials and Structures, Harbin Institute of Technology
来源：
AppliedMathematicsandMechanics(EnglishEdition) | 2017年 / 38卷 / 02期
基金：
中国国家自然科学基金;
关键词：
orthotropic elastic medium; rectangular crack; time-harmonic P-wave; non-local theory;
D O I：
暂无
中图分类号：
O346.1 [断裂理论];
学科分类号：
080102 ;
摘要：
The dynamic behavior of a rectangular crack in a three-dimensional(3D)orthotropic elastic medium is investigated under a harmonic stress wave based on the non-local theory. The two-dimensional(2D) Fourier transform is applied, and the mixedboundary value problems are converted into three pairs of dual integral equations with the unknown variables being the displacement jumps across the crack surfaces. The effects of the geometric shape of the rectangular crack, the circular frequency of the incident waves,and the lattice parameter of the orthotropic elastic medium on the dynamic stress field near the crack edges are analyzed. The present solution exhibits no stress singularity at the rectangular crack edges, and the dynamic stress field near the rectangular crack edges is finite.
引用
收藏
页码：173 / 190
页数：18
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