A simple particle-spring method for capturing the continuous-discontinuous processes of brittle materials

doi:10.1016/j.enganabound.2022.03.015

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 simple particle-spring method for capturing the continuous-discontinuous processes of brittle materials
	Feng, Chun 3,4; Liu, Xinming 2,4; Lin, Qindong 1; Li, Shihai 4
刊名	ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS
	2022-06-01
卷号	139 页码:221-231
关键词	Particle-spring method Mixed fracture Multiple crack propagation Brittle material
ISSN号	0955-7997
DOI	10.1016/j.enganabound.2022.03.015
通讯作者	Feng, Chun(fengchun@imech.ac.cn)
英文摘要	Comparing to the continuum-based method such as the finite element method (FEM), particle-spring method can relatively easily simulate the cracking processes of brittle materials such as rocks by deactivating or adjusting springs/contacts. However, it is still challenging for building the equivalence between particle-spring system and the original continuous media, then capturing the whole continuous-discontinuous processes. In this work, a simple particle-spring system is proposed in which different types of springs are introduced including normal, tangential, pure shearing and Poisson's springs. The stiffness of the springs are obtained by bridging the proposed model and triangular FEM element. Moreover, novel mixed type failure criteria for the breakage of the springs are also provided. By numerical studies the reliability and robustness of the model are proven which gives comparable results to the conventional FEM model. With the new model, progressive failure processes of rock-like material can be properly captured.
资助项目	National Key Research and Development Project of China[2018YFC1505504] ; Ministry of Science and Technology of China
WOS关键词	NUMERICAL MANIFOLD METHOD ; MESHFREE METHOD ; EMBEDDED APPROACH ; MODEL ; FAILURE ; CRACKS ; DAMAGE ; PROPAGATION ; FRACTURE ; ALGORITHM
WOS研究方向	Engineering ; Mathematics
语种	英语
WOS记录号	WOS:000799991600005
资助机构	National Key Research and Development Project of China ; Ministry of Science and Technology of China
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89639]
专题	力学研究所_流固耦合系统力学重点实验室(2012-)
通讯作者	Feng, Chun
作者单位	1.Xian Modern Chem Res Inst, Xian 710065, Shanxi, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Univ Politecn Cataluna, Int Ctr Numer Methods Engn CIMNE, Barcelona, Spain 4.Chinese Acad Sci, Inst Mech, Key Lab Mech Fluid Solid Coupling Syst, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Feng, Chun,Liu, Xinming,Lin, Qindong,et al. A simple particle-spring method for capturing the continuous-discontinuous processes of brittle materials[J]. ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS,2022,139:221-231.
APA	Feng, Chun,Liu, Xinming,Lin, Qindong,&Li, Shihai.(2022).A simple particle-spring method for capturing the continuous-discontinuous processes of brittle materials.ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS,139,221-231.
MLA	Feng, Chun,et al."A simple particle-spring method for capturing the continuous-discontinuous processes of brittle materials".ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS 139(2022):221-231.