Continuum-discontinuum element method

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	Continuum-discontinuum element method
	Li SH(李世海); Zhou D(周东); Wang J; Feng C(冯春)
	2017
摘要	The continuum-discontinuum element method is a dynamic explicit algorithm based on element fracture under the Lagrange system. This method has combined the advantages of the continuous model and the discrete element method. The finite element method and the spring element method can be applied to calculate the internal force of an element and to determine if the element has reached the fracture condition. The discrete element method can be used to detect contact and determine contact force on the fracture plane or on the boundary of a block. It is a unified expression for the whole failure process of a material from continuous state to discontinuous state. A series of new theories, concepts and methods have been merged into this method, which include a spring element method based on the new concept of Poisson spring and pure shear spring, structure layer model with specific physical meaning for the interface springs, a new algorithm which allows elements to fracture during calculation, and a new contact detection method based on edge and face. With the basic models mentioned above, dynamic deformation; fracture and motion of the material; and structure under complex conditions can be simulated with continuum-discontinuum element method. © 2017 Taylor & Francis Group, London, UK.
专著/编著/文集名	Rock Mechanics and Engineering Volume 3: Analysis, Modeling and Design
页码	121-150
出版者	CRC Press
语种	英语
ISBN号	9781315708133
文献类型	图书章节
条目标识符	http://dspace.imech.ac.cn/handle/311007/85076
专题	流固耦合系统力学重点实验室
作者单位	Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Li SH,Zhou D,Wang J,et al. Continuum-discontinuum element method[Ch]. Rock Mechanics and Engineering Volume 3: Analysis, Modeling and Design,CRC Press,2017.

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