| 三维热弹性力学问题的混合边界元法 |
| |
| 引用本文： | 邱德隆,刘光廷.三维热弹性力学问题的混合边界元法[J].工程力学,1999,16(6):1-6,. |
| |
| 作者姓名： | 邱德隆 刘光廷 |
| |
| 作者单位： | [1]北京城建工程研究院，北京100081 [2]清华大学水电工程系，北京100084 |
| |
| 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。
|
| 关 键 词： | 热弹性力学 混合边界元法 虚拟热源 |
A HYBRID BOUNDARY ELEMENT METHOD IN THREE-DIMENSIONAL THERMOELASTIC PROBLEM |
| |
| QIU De-long, LIU Guang-ting.A HYBRID BOUNDARY ELEMENT METHOD IN THREE-DIMENSIONAL THERMOELASTIC PROBLEM[J].Engineering Mechanics,1999,16(6):1-6,. |
| |
| Authors: | QIU De-long LIU Guang-ting |
| |
| Abstract: | 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. |
| |
| Keywords: | thermoelasticity hybrid boundary element method fictitious heat source |
| 本文献已被 CNKI 维普 等数据库收录！ |
