Investigation on the microscale creep behavior of constituent minerals in granite using nanoindentation and a novel creep model
文献类型：期刊论文
| 作者 | Liu, Xiu-Yang2,3; Xu, Ding-Ping3; Duan, Shu-Qian1; Li, Shao-Jun3; Jiang, Quan3 |
| 刊名 | MEASUREMENT
 |
| 出版日期 | 2025-03-15 |
| 卷号 | 245页码:13 |
| 关键词 | Granite Constituent mineral Microscale creep behavior Nanoindentation Creep model |
| ISSN号 | 0263-2241 |
| DOI | 10.1016/j.measurement.2025.116666 |
| 英文摘要 | The creep behavior of rocks, including their strength and permeability, significantly affects the long-term stability of deep underground engineering. Constituent minerals, as the fundamental units of rocks, play a crucial role in the creep process of rocks. In order to investigate the time-dependent behavior of the Shuangjiangkou (SJK) granite at the microscale, creep tests using nanoindentation, along with various creep models (i.e., standard solid, Burgers, and logarithmic models), were utilized to explore the microscale creep behavior and mechanisms of the constituent minerals in the SJK granite. The experimental results revealed that the creep strain, contact creep modulus, and characteristic creep time of the constituent minerals followed the order: biotite > plagioclase >K-feldspar approximate to quartz. The contact creep modulus of the constituent minerals displayed a linear positive correlation with hardness and Young's modulus, and a linear negative correlation with maximum creep displacement, suggesting that constituent minerals with higher hardness exhibit stronger resistance to creep deformation and smaller maximum creep displacement. The creep models' fitting results revealed that the current logarithmic creep model, despite its high accuracy, does not capture phenomena like elastic recovery or thermal drift in the creep process. Hence, a modified logarithmic creep model was introduced to address the time-dependent decrease in creep displacement, attributed to potential thermal drift or elastic recovery. Lastly, the microscale creep mechanism of the SJK granite was explained as dislocation creep, based on the strain sensitivity index of the constituent minerals. This study provides preliminary insights for future cross-scale investigation of the microscale creep behavior of constituent minerals in rocks and the macroscopic timedependent failure of rock masses. |
| 资助项目 | National Natural Science Foun-dation of China[52279117] ; National Natural Science Foun-dation of China[52325905] ; National Natural Science Foun-dation of China[52279114] |
| WOS研究方向 | Engineering ; Instruments & Instrumentation |
| 语种 | 英语 |
| WOS记录号 | WOS:001408467400001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/37505]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Xu, Ding-Ping |
| 作者单位 | 1.Zhengzhou Univ, Sch Hydraul & Civil Engn, Zhengzhou 450001, Henan, 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 | Liu, Xiu-Yang,Xu, Ding-Ping,Duan, Shu-Qian,et al. Investigation on the microscale creep behavior of constituent minerals in granite using nanoindentation and a novel creep model[J]. MEASUREMENT,2025,245:13. |
| APA | Liu, Xiu-Yang,Xu, Ding-Ping,Duan, Shu-Qian,Li, Shao-Jun,&Jiang, Quan.(2025).Investigation on the microscale creep behavior of constituent minerals in granite using nanoindentation and a novel creep model.MEASUREMENT,245,13. |
| MLA | Liu, Xiu-Yang,et al."Investigation on the microscale creep behavior of constituent minerals in granite using nanoindentation and a novel creep model".MEASUREMENT 245(2025):13. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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