Structure layer model in continuum-discontinuum element method
文献类型：会议论文
| 作者 | Zhou D(周东) ; Li SH(李世海); Zhang QB(张青波); Liu TP(刘天苹)
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| 出版日期 | 2013 |
| 会议名称 | 6th International Conference on Discrete Element Methods and Related Techniques (DEM 6) |
| 会议日期 | AUG 05-06, 2013 |
| 会议地点 | Golden,Colorado,USA |
| 页码 | 445-450 |
| 中文摘要 | A new interface model for discrete element method, named structure layer model, is introduced. Structure layer is composed of spring elements and adopted to continuumdiscontinuum element method, CDEM. It is with thickness but without mass. Thin intercalation in the discontinuous geologic bodies as well as the interface between elements in the continuous problem can be modeled by structure layer. Different from the traditional interface spring model in discrete element method, the stiffness of structure layer has definite physical meaning, because the layer is with real thickness and all the parameters are determined by the factual material. Not only tension and shear, but also Poisson effect and pure shearing can be expressed with structure layer model, which increases the accuracy of numerical modeling for thin structure layer. Meanwhile, since there is no need to set large spring stiffness to ensure displacement continuity of nodes at the same place as in the interface spring model, large time step can be adopted, efficiency of computation is increased. |
| 产权排序 | [Zhou, Dong; Li, Shihai; Zhang, Qingbo; Liu, Tianping] Institute of Mechanics, Chinese Academy of Sciences |
| 会议录 | Proceedings of the 6th International Conference on Discrete Element Methods and Related Techniques
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| 语种 | 英语 |
| ISBN号 | 0-918062-20-9 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/48325]  |
| 专题 | 力学研究所_流固耦合系统力学重点实验室(2012-) |
| 推荐引用方式 GB/T 7714 | Zhou D,Li SH,Zhang QB,et al. Structure layer model in continuum-discontinuum element method[C]. 见:6th International Conference on Discrete Element Methods and Related Techniques (DEM 6). Golden,Colorado,USA. AUG 05-06, 2013. |
入库方式： OAI收割
来源：力学研究所
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