Comparison Of The Quasi-Static Method And The Dynamic Method For Simulating Fracture Processes In Concrete

CORC > 力学研究所 > 中国科学院力学研究所 > 力学所知识产出(1956-2008)

	Comparison Of The Quasi-Static Method And The Dynamic Method For Simulating Fracture Processes In Concrete
	Liu JX(刘金兴); Deng SC(邓守春); Liang NG(梁乃刚)
刊名	Computational Mechanics
	2008
通讯作者邮箱	liujx@lnm.imech.ac.cn
页码	647-660
关键词	Concrete Generalized Beam Lattice Model Inertia Effects Quasi-Static And Dynamic Method Fracture Numerical-Simulation Particle Composites Model Specimen
ISSN号	0178-7675
通讯作者	Liu, JX (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China.
中文摘要	Concrete is heterogeneous and usually described as a three-phase material, where matrix, aggregate and interface are distinguished. To take this heterogeneity into consideration, the Generalized Beam (GB) lattice model is adopted. The GB lattice model is much more computationally efficient than the beam lattice model. Numerical procedures of both quasi-static method and dynamic method are developed to simulate fracture processes in uniaxial tensile tests conducted on a concrete panel. Cases of different loading rates are compared with the quasi-static case. It is found that the inertia effect due to load increasing becomes less important and can be ignored with the loading rate decreasing, but the inertia effect due to unstable crack propagation remains considerable no matter how low the loading rate is. Therefore, an unrealistic result will be obtained if a fracture process including unstable cracking is simulated by the quasi-static procedure.
类目[WOS]	Mathematics, Interdisciplinary Applications ; Mechanics
研究领域[WOS]	Mathematics ; Mechanics
关键词[WOS]	NUMERICAL-SIMULATION ; PARTICLE COMPOSITES ; MODEL ; SPECIMEN
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000252671500003
公开日期	2009-08-03 ; 2009-09-14
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/26142]
专题	力学研究所_力学所知识产出(1956-2008)
推荐引用方式 GB/T 7714	Liu JX,Deng SC,Liang NG. Comparison Of The Quasi-Static Method And The Dynamic Method For Simulating Fracture Processes In Concrete[J]. Computational Mechanics,2008:647-660.
APA	刘金兴,邓守春,&梁乃刚.(2008).Comparison Of The Quasi-Static Method And The Dynamic Method For Simulating Fracture Processes In Concrete.Computational Mechanics,647-660.
MLA	刘金兴,et al."Comparison Of The Quasi-Static Method And The Dynamic Method For Simulating Fracture Processes In Concrete".Computational Mechanics (2008):647-660.