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| 可变形体离散元模型 | |
| 引用本文： | 鲍鹏 姜忻良 崔奕. 可变形体离散元模型[J]. 天津大学学报(自然科学与工程技术版), 2005, 38(6): 552-555 |
| 作者姓名： | 鲍鹏 姜忻良 崔奕 |
| 作者单位： | [1]天津大学建筑工程学院,天津300072／／河南大学土木建筑学院,开封475001 [2]天津大学建筑工程学院,天津300072 |
| 基金项目： | 河南省教育厅自然科学基础研究资助项目(2000560008) |
| 摘 要： | 为解决岩土工程中的大变形和不连续问题，根据变形体动力学和离散元法的基本原理，建立了适用于可变形体的单元模型．采用弹塑性边-边接触模型及动态松弛法，推导出相应的理论公式并编制了计算程序．通过选取适当的计算参数对典型算例进行分析计算；得到了静力平面问题的应力、位移分布及静态解的收敛过程；验证了计算程序和计算参数选取的正确性；证明了该方法用于岩土工程静力计算的可行性． |
| 关 键 词： | 离散元 变形体 静力分析 岩土工程 |
| 文章编号： | 0493-2137(2005)06-0552-04 |
| 修稿时间： | 2004-01-13 |
Discrete Element Model for Deformable Bodies |
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| BAO Peng ,,JIANG Xin-liang,CUI Yi. Discrete Element Model for Deformable Bodies[J]. Journal of Tianjin University(Science and Technology), 2005, 38(6): 552-555 | |
| Authors: | BAO Peng JIANG Xin-liang CUI Yi |
| Affiliation: | BAO Peng 1,2,JIANG Xin-liang1,CUI Yi1 |
| Abstract: | To solve the problems of large displacement and discontinuousness in rock and soil engineering, a element model for deformable bodies was built according to the fundamental principle of dynamics of deformable bodies and discrete element method. Using elastic-plastic side-side contact model and dynamic relaxation method, the corresponding theoretical formula was deduced and the corresponding calculating program was worked out. The displacement and stress distribution of static problem and the astringency of its solution werer presented to test the validity of calculating program and parameter by analyzing a typical example. The feasibility of discrete element method for deformable bodies applied to static calculation in rock and soil engineering was proved. |
| Keywords: | discrete element deformable bodies static analysis rock and soil engineering |
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