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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); Liu, JX (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. | |
发表期刊 | Computational Mechanics |
2008 | |
页码 | 647-660 |
ISSN | 0178-7675 |
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. |
关键词 | Concrete Generalized Beam Lattice Model Inertia Effects Quasi-static And Dynamic Method Fracture Numerical-simulation Particle Composites Model Specimen |
DOI | 10.1007/s00466-007-0221-7 |
收录类别 | SCI ; EI |
语种 | 英语 |
WOS记录号 | WOS:000252671500003 |
关键词[WOS] | NUMERICAL-SIMULATION ; PARTICLE COMPOSITES ; MODEL ; SPECIMEN |
WOS研究方向 | Mathematics ; Mechanics |
WOS类目 | Mathematics, Interdisciplinary Applications ; Mechanics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/26142 |
专题 | 力学所知识产出(1956-2008) |
通讯作者 | Liu, JX (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100080, Peoples R China. |
推荐引用方式 GB/T 7714 | Liu JX,Deng SC,Liang NG,et al. 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,&Liu, JX .(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. |
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