A FEM/DEM coupled and evolved model and its application in failure simulation of geological body

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	A FEM/DEM coupled and evolved model and its application in failure simulation of geological body
	Feng C(冯春); Li SH(李世海); Onate E; Santasusana M
会议录名称	Proceedings of the 6th International Conference on Discrete Element Methods and Related Techniques
	2013
页码	102-107
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
摘要	To simulate the failure process of geological body, a FEM/DEM coupled and evolved model is introduced. Traditional FEM and DEM algorithm is used, and explicit time integration method is adopted. To transfer the contact force between FEM elements and DEM elements, a point-edge contact model (2D) and point-face contact model (3D) are introduced in; normal and tangential springs are adopted. Strain softening Mohr-Coulomb model and maximum tensile model are selected for FEM. Once one FEM element reaches the critical plastic strain state, the FEM element will be deleted, and a particle will be generated at the same place with all information inherited from the deleted FEM. Some numerical cases show the accuracy and rationality of the model.
课题组名称	LMFS工程地质体力学(LEM)
ISBN号	0-918062-20-9
语种	英语
文献类型	会议论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/48328
专题	流固耦合系统力学重点实验室
推荐引用方式 GB/T 7714	Feng C,Li SH,Onate E,et al. A FEM/DEM coupled and evolved model and its application in failure simulation of geological body[C]Proceedings of the 6th International Conference on Discrete Element Methods and Related Techniques,2013:102-107.

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