Deformation and damage evolution of rock salt under multilevel cyclic loading with constant stress intervals
文献类型：期刊论文
| 作者 | Zhao, Kai; Ma, Hongling; Li, Yinping; Li, Peng; Dong, Zhikai; Liu, Xin; Yin, Hongwu; Yang, Chunhe; Chen, Xiangsheng |
| 刊名 | ENGINEERING FRACTURE MECHANICS
 |
| 出版日期 | 2022-02-01 |
| 卷号 | 260 |
| 关键词 | Rock salt Multilevel cyclic loading Constant stress interval Deformation properties Damage evolution |
| ISSN号 | 0013-7944 |
| 英文摘要 | The rocks surrounding a salt cavern used as a compressed air energy storage (CAES) system experience cyclic internal pressure with intermittent intervals. The operational internal pressures of the salt cavern vary with the geological conditions and electricity generation requirements. In this study, multilevel cyclic loading tests were conducted on rock salt, and the loading waveform included a constant stress interval between each loading-unloading cycle. The deformation and damage evolution at each loading level were investigated. An improved Chaboche fatigue damage model was developed to illustrate the damage accumulation at each loading stage, which considered the effect of damage accumulation during the hold time stage. The results indicated that the deformation generally increased with increasing loading stress levels and exhibited a two-stage variation trend at each loading stage. The longer interval duration per cycle led to an increase in the width and area of the hysteresis loops and the advance of the dilatancy point. The damage variable gradually increased with the loading level. The damage accumulation at each loading level generally exhibited two stages: a rapid increase followed by a stable increase, which matches significantly with the enhanced damage model for the entire loading procedure. This study provides a reference for investigating the deformation and damage properties of other rocks under multilevel fatigue loading and provides guidance for designing the operation pressure of salt caverns in a CAES system. |
| 学科主题 | Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000778316300001 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35308]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.East China Jiaotong University 2.Chinese Academy of Sciences; University of Chinese Academy of Sciences, CAS; 3.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS; |
| 推荐引用方式 GB/T 7714 | Zhao, Kai,Ma, Hongling,Li, Yinping,et al. Deformation and damage evolution of rock salt under multilevel cyclic loading with constant stress intervals[J]. ENGINEERING FRACTURE MECHANICS,2022,260. |
| APA | Zhao, Kai.,Ma, Hongling.,Li, Yinping.,Li, Peng.,Dong, Zhikai.,...&Chen, Xiangsheng.(2022).Deformation and damage evolution of rock salt under multilevel cyclic loading with constant stress intervals.ENGINEERING FRACTURE MECHANICS,260. |
| MLA | Zhao, Kai,et al."Deformation and damage evolution of rock salt under multilevel cyclic loading with constant stress intervals".ENGINEERING FRACTURE MECHANICS 260(2022). |
入库方式： OAI收割
来源：武汉岩土力学研究所
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