Damage Evolution and Deformation of Rock Salt Under Creep-Fatigue Loading
文献类型：期刊论文
| 作者 | Zhao, Kai2,3; Ma, Hongling3; Yang, Chunhe3; Chen, Xiangsheng1; Liu, Yibiao2,3; Liang, Xiaopeng2,3; Cai, Rui2,3 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2021-02-04 |
| 页码 | 13 |
| 关键词 | Creep-fatigue Rock salt Damage evolution Hold time CAES |
| ISSN号 | 0723-2632 |
| DOI | 10.1007/s00603-020-02342-6 |
| 英文摘要 | During the operation of a compressed air energy storage (CAES) salt cavern, the surrounding rock experiences creep damage during the stages of constant internal pressure and undergoes fatigue damage due to the periodical injection-production. To describe the damage evolution of salt rock under creep-fatigue loading, a novel damage accumulation model based on the ductility exhaustion concept is proposed by applying a nonlinear summation method to represent the synergistic effect of creep and fatigue damage. Low-cycle fatigue (LCF) and creep-fatigue tests of rock salt were conducted under stress-control mode for various cycle stress amplitudes and hold times. Results show that the deformation of rock salt under creep-fatigue loading consists of initial, steady and accelerated phases. The proposed model matches well with the test data and can accurately describe the damage evolution as the applied stress amplitudes and dwell times change. The introduction of the hold times at the upper limit stress causes a strain increment and life reduction, which become more evident as the duration periods prolong and can be understood by the dislocation theory of crystals. |
| 资助项目 | National Natural Science Foundation of China[51874274] ; National Natural Science Foundation of China[51774266] ; Youth Innovation Promotion Association CAS[2019324] ; Science and Technology Research Project of Jiangxi Provincial Department of Education[GJJ200634] |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000614682700001 |
| 出版者 | SPRINGER WIEN |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/25650]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Zhao, Kai; Ma, Hongling |
| 作者单位 | 1.East China Jiaotong Univ, Natl Expt Teaching Demonstrat Ctr Civil Engn, Nanchang 330013, Jiangxi, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.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 | Zhao, Kai,Ma, Hongling,Yang, Chunhe,et al. Damage Evolution and Deformation of Rock Salt Under Creep-Fatigue Loading[J]. ROCK MECHANICS AND ROCK ENGINEERING,2021:13. |
| APA | Zhao, Kai.,Ma, Hongling.,Yang, Chunhe.,Chen, Xiangsheng.,Liu, Yibiao.,...&Cai, Rui.(2021).Damage Evolution and Deformation of Rock Salt Under Creep-Fatigue Loading.ROCK MECHANICS AND ROCK ENGINEERING,13. |
| MLA | Zhao, Kai,et al."Damage Evolution and Deformation of Rock Salt Under Creep-Fatigue Loading".ROCK MECHANICS AND ROCK ENGINEERING (2021):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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