A constitutive model for rock materials subjected to triaxial cyclic compression
文献类型：期刊论文
| 作者 | Zhou, Yongqiang4; Sheng, Qian3,4; Li, Nana2; Fu, Xiaodong4; Zhang, Zhenping4; Gao, Lisong1 |
| 刊名 | MECHANICS OF MATERIALS
 |
| 出版日期 | 2020-05-01 |
| 卷号 | 144页码:12 |
| 关键词 | Constitutive model Mechanical properties Rock materials Triaxial cyclic loading |
| ISSN号 | 0167-6636 |
| DOI | 10.1016/j.mechmat.2020.103341 |
| 英文摘要 | Underground rock engineering projects are often subjected to cyclic loading such as earthquake, rock blasting. A suitable constitutive model for rock materials modeling the deformation failure characteristics of rock materials subjected to triaxial cyclic loading is significant when evaluating the long-term stability of the engineering. To date, however, there have been notably few studies on proposing constitutive models for rock materials under triaxial cyclic loading. The paper presents and validates the formulation of a new constitutive model able to reproduce the cyclic behavior of rock materials under triaxial cyclic loading. The constitutive model is based on the subloading surface theory and the modified cohesion weakening and frictional strengthening (CWFS) model. It contains kinematic hardening of the subloading surface, isotropic softening on the cohesion and isotropic hardening on the friction angle, and the effect of confining stress. Further, the model is numerically implemented in a self-developed finite element program using elastic prediction-plasticity correction method. In addition, the model is validated against two different rock materials (T-2b marble and crystalline marble) under triaxial damage-controlled and constant amplitude cyclic compression loading. A reasonable consistency is observed between the numerical and experimental results for the stress-strain curves, the evolution of residual strain with number of cycles, degradation of strength and the effect of confining stress. It shows that the model can effectively reproduce the cumulative plastic deformation, hysteretic loop, damage and the effect of confining stress of rock materials under triaxial cyclic loading. Therefore, the proposed model can provide a helpful method to describe the main deformation and strength properties of rock materials under triaxial cyclic loading, and lays a foundation for the accurate analysis of the response of underground rock engineering under cyclic loading. |
| 资助项目 | National Key R&D Program of China[2018YFC0809400] ; National Natural Science Foundation of China[51809258] ; National Natural Science Foundation of China[51679232] |
| WOS研究方向 | Materials Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000527285500013 |
| 出版者 | ELSEVIER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/23995]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhou, Yongqiang |
| 作者单位 | 1.Hubei Univ Technol, Sch Civil Engn Architecture & Environm, Wuhan 430068, Peoples R China 2.Chinese Acad Sci, Wuhan Lib, Wuhan 430071, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yongqiang,Sheng, Qian,Li, Nana,et al. A constitutive model for rock materials subjected to triaxial cyclic compression[J]. MECHANICS OF MATERIALS,2020,144:12. |
| APA | Zhou, Yongqiang,Sheng, Qian,Li, Nana,Fu, Xiaodong,Zhang, Zhenping,&Gao, Lisong.(2020).A constitutive model for rock materials subjected to triaxial cyclic compression.MECHANICS OF MATERIALS,144,12. |
| MLA | Zhou, Yongqiang,et al."A constitutive model for rock materials subjected to triaxial cyclic compression".MECHANICS OF MATERIALS 144(2020):12. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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