Continuum-based Discrete Element Method and its Applications

摘要：

Continuum-based discrete element method (CDEM) is a kind of numerical approach which is a combination of finite element and discrete element method. In this paper, the principle and structure of CDEM is introduced briefly, and two new mechanical models, two new calculating approaches and one new element generating technique used in CDEM are presented. Two new mechanical models are common face breakage model and block breakage model, two new calculating approaches are the method to calculate the force and displacement among different element size and the method to calculate breakage of joints after randomizing the coordinates of nodes, and the new element generating technique means generate elements by cutting a domain. Examples of application of the CDEM for solving some geo-engineering problems are given as well.

作者: Shihai Li Xiaoyu Liu Tianping Liu Chun Feng

作者单位: Institute of Mechanics,Chinese Academy of Sciences,Beijing,100190,China

会议类型: 国际会议

会议名称: 国际离散元及非连续介质力学数值模拟研讨会(北京离散元08)(International Symposium RCUK-China Summer School on Discrete Element Methods and Numerical Modelling of Discontinuum Mechanics)(Beijing DEM08)

会议地点: 北京

会议语种:英文

页码: 147-170

在线出版日期: 2008-09-24（万方平台首次上网日期，不代表论文的发表时间）