| 基于边-边接触的三维离散数值计算模型 |
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| 引用本文： | 郭易圆,李世海.基于边-边接触的三维离散数值计算模型[J].河南师范大学学报(自然科学版),2002,30(3):32-35. |
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| 作者姓名： | 郭易圆 李世海 |
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| 作者单位： | 1. 北京航空航天大学理学院,北京,100083
2. 中国科学院力学研究所,北京,100080 |
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| 摘 要： | 采用边-边（面-面）接触离散元模型，研制了三维离散元计算程序，计算了集中载荷作用下弹性基础的沉降和应力场，通过与解析解的比较，基本验证了该程序的可靠性，当单元之间的位移和变形相对于单元本身的尺度较小时，采用边-边接触模型研究不连续介质问题和颗粒散体问题比角-边接触模型更加有效。
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| 关 键 词： | 三维离散数值计算模型 边－边接触模型 离散元法 应力场 弹性基础 地基沉降 位移 |
| 文章编号： | 1000-2367(2002)03-0032-04 |
| 修稿时间： | 2002年5月18日 |
Three Dimensional Distinct Element Method Based on Face-to-Face Contact Model |
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| GUO Yi yuan ,LI Shi hai.Three Dimensional Distinct Element Method Based on Face-to-Face Contact Model[J].Journal of Henan Normal University(Natural Science),2002,30(3):32-35. |
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| Authors: | GUO Yi yuan LI Shi hai |
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| Institution: | GUO Yi yuan 1,LI Shi hai 2 |
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| Abstract: | The program of three dimensional distinct element method based on edge to edge (face to face) contact model was developed. The subsidence and stress field of an elastic base applied by a force are present in this paper. Compare with analytical results, the reliability of the program is verified. When the displacement and distortion of an element is small compared to its dimension, the edge to edge contact model are more efficient than the corner to edge contact model for discontinuous media and grain media. |
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| Keywords: | edge to edge contact model distinct element method(DEM) stress field |
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