| 弹粘塑性边界元方法中域内积分的研究 |
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| 引用本文： | 陈乃明,张海东,等.弹粘塑性边界元方法中域内积分的研究[J].西安理工大学学报,1995,11(1):51-55. |
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| 作者姓名： | 陈乃明 张海东 |
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| 作者单位： | [1]中南工业大学资源开发系 [2]西安理工大学水利水电学院， |
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| 摘 要： | 弹粘塑性问题的边界元分析方法中初应力矩阵的形成占用了整个计算时间的大部分。本文在积分域内采用三角形线性单元的离散形式，导出了该矩阵计算的解析式和半解析式，能更有效地处理奇异积分，提高计算精度，缩短计算时间。同时，编制了相应的计算程序，并给出了用于地下工程稳定分析的实例。
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| 关 键 词： | 弹粘塑性 奇异性 解析式 半解析式 边界元法 域内积分 |
A Study on the internal Cells Integrals of Elastic-Visco-Plastic BEM |
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| Chen Naming, Zhang Haidong,Liu Jingyi.A Study on the internal Cells Integrals of Elastic-Visco-Plastic BEM[J].Journal of Xi'an University of Technology,1995,11(1):51-55. |
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| Authors: | Chen Naming Zhang Haidong Liu Jingyi |
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| Institution: | Chen Naming; Zhang Haidong;Liu Jingyi |
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| Abstract: | The fotmation of the initial stress matrix takes up most of the whole computing time in theclinic-visco-plastic BEM.The analysical formulas and the semi-analysical formulas of the initial stressmatrix are derived for the triangular cells in this peper so that the singularity can be effectively removed.This method can also short6n the computing time and raise accuracy.At the same time,thecorresponding BEM program is compiled the the analysis of the surrounding rock stability of an undergtound project is performed using the program. |
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| Keywords: | elastic-visco-plastic singularity analysical formulas semi-analysical formulas |
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