A computational model with fracture energy in continuum-discontinuum element method

IMECH-IR > 流固耦合系统力学重点实验室

	A computational model with fracture energy in continuum-discontinuum element method
	Li SH(李世海); Zhou D(周东); Zhang QB(张青波); Duan WJ(段文杰)
会议录名称	Proceedings of the 6th International Conference on Discrete Element Methods and Related Techniques
	2013
页码	79-84
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	Energy function with fracture energy, frictional energy, kinetic energy and elastic energy is proposed. And dynamic equations for continuum-discontinuum model in solid are obtained with the energy function and progressive failure constitutive model based on strain strength distribution. Combined with spring element model, computational scheme for spring force and nodal force in continuum-discontinuum element method is established with consideration of energy dissipation. Relationship between continuum mechanics model and discrete particles are discussed and the critical parameters are determined. Characteristic fracture length in representative volume element (RVE) is introduced, and theoretical expressions for progressive failure process of the element are given. Numerical examples such as uniaxial compression and uniaxial tension test are calculated with this model for verification.
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/311007/48330
专题	流固耦合系统力学重点实验室
推荐引用方式 GB/T 7714	Li SH,Zhou D,Zhang QB,et al. A computational model with fracture energy in continuum-discontinuum element method[C]Proceedings of the 6th International Conference on Discrete Element Methods and Related Techniques,2013:79-84.

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