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

CORC > 力学研究所 > 中国科学院力学研究所 > 流固耦合系统力学重点实验室(2012-)

	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)
	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	79-84
中文摘要	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.
产权排序	[Li, Shihai; Zhou, Dong; Zhang, Qingbo; Duan, Wenjie] Institute of mechanics, Chinese Academy of Sciences
会议录	Proceedings of the 6th International Conference on Discrete Element Methods and Related Techniques
语种	英语
ISBN号	0-918062-20-9
内容类型	会议论文
源URL	[http://dspace.imech.ac.cn/handle/311007/48330]
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	Li SH,Zhou D,Zhang QB,et al. A computational model with fracture energy 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.