摘要
本本文给出了三维无限大域内点热源作用下的位移、应力场基本解。采用基于虚拟热源法的间接边界元法和直接边界元法的混合边界元法求解三维有限域热弹性力学问题，有效地避免了热弹性力学问题中域内积分的处理。数值计算表明混合边界元法求热弹性力学问题具有简单方便、精度较高的优点。
The fundamental solutions of displacements and stresses in infinite three-dimensionalbody due to a unit heat source are given in the present paper. Based on a fictitious heat source, thehybrid boundary element method for three-dimensional thermoelastic problems is outlined. Usingthe hybrid element method the numerical process is simplified greatly, since the discrehzationwithin the body is avoided. Examples are provided to show the validity and high accuracy of themethod.
出处
《工程力学》
EI
CSCD
北大核心
1999年第6期1-6, ,共6页
Engineering Mechanics
关键词
热弹性力学
混合边界元法
虚拟热源
三维
thermoelasticity, hybrid boundary element method, fictitious heat source
