Effects of temperature and increasing amplitude cyclic loading on the mechanical properties and energy characteristics of granite
文献类型：期刊论文
| 作者 | Zhao, Guokai2; Guo, Yintong3; Chang, Xin3; Jin, Peihua1; Hu, Yaoqing1 |
| 刊名 | BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
 |
| 出版日期 | 2022 |
| 卷号 | 81期号:4页码:- |
| 关键词 | Granite Temperature Cyclic loading Multilevel amplitude Hardening |
| ISSN号 | 1435-9529 |
| 英文摘要 | Increasing upper limits of cyclic loading tests at different temperatures were carried out to reveal the influence of temperature and stress level on the mechanical properties and energy characteristics of granites. The mechanical properties of granite were altered by temperature and cyclic loading, which is manifested by the observation of rock hardening, i.e., the elastic modulus increases gradually in an approximately logarithmic relationship with increasing stress levels and the relative residual strain shows a decreasing trend. The energy evolution of granite changes from nonlinear characteristic to linear characteristic with increasing temperature. The input energy density and elastic energy density, at 25 degrees C and 100 degrees C, both increase nonlinearly with increasing stress levels as an approximately exponential relationship, whereas those, in the range of 200 to 600 degrees C, increase almost linearly as the unloading stress level is less than 0.9. The energy distribution of granite subjected to cyclic loading was revealed, i.e., the energy accumulation is dominant in the pre-peak stage. The mathematical model of elastic energy density and input energy density at different temperatures was proposed, which is critical for the energy-based brittleness index that can be used to evaluate the stability and compressibility evaluation of the reservoirs. This generalized equation of different types of rocks merits further study. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000771488100004 |
| 出版者 | SPRINGER HEIDELBERG |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35145]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Key Laboratory of In-Situ Property Improving Mining of Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China 2.State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China 3.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, Hubei, China |
| 推荐引用方式 GB/T 7714 | Zhao, Guokai,Guo, Yintong,Chang, Xin,et al. Effects of temperature and increasing amplitude cyclic loading on the mechanical properties and energy characteristics of granite[J]. BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,2022,81(4):-. |
| APA | Zhao, Guokai,Guo, Yintong,Chang, Xin,Jin, Peihua,&Hu, Yaoqing.(2022).Effects of temperature and increasing amplitude cyclic loading on the mechanical properties and energy characteristics of granite.BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT,81(4),-. |
| MLA | Zhao, Guokai,et al."Effects of temperature and increasing amplitude cyclic loading on the mechanical properties and energy characteristics of granite".BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT 81.4(2022):-. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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