摘要
本文利用波函数法结合奇异积分方程技术分析了刚性半圆形基础与土体部分脱离时的出平面动力响应问题.将界面脱离区模拟为界面裂纹,根据问题的混合边值条件获得一组奇异积分方程,通过数值求解给出了基础和土体的位移场,并借助断裂力学中动应力强度因子的概念讨论了界面剪应力强度.
This paper considers the anti-plane dynamic response of a rigid semi-cytindri- cal foundation partially debonded from soil by using the wave function expansion method and singular integral equation technique.The debonding regions axe modeled as interface cracks. The mixed boundary conditions lead to a set of singular integral equations.Solving these equa- tions numerically,we obtain the displacement fields of the foundation and soil,and discuss the strength of the dynamic shear stresses on the bonding regions with the help of the dynamic stress intensity factors.
出处
《工程力学》
EI
CSCD
北大核心
1997年第1期26-33,共8页
Engineering Mechanics
关键词
基础
界面脱离
界面裂纹
动力相互作用
foundation
interface debonding
interface crack
dynamic interaction
