Assessment on anisotropy degree and fracture modes for weakly anisotropic sandstone using the acoustic emission technique
文献类型：期刊论文
| 作者 | Zheng, Kun; Wang, Chaolin; Zhao, Yu; Bi, Jing; Zhang, Hua |
| 刊名 | FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
 |
| 出版日期 | 2023-08-01 |
| 卷号 | 46期号:8页码:2766 |
| ISSN号 | 8756-758X |
| 关键词 | acoustic emission fracture modes k-means clustering macroscopic failure patterns weakly anisotropic sandstone |
| 英文摘要 | Comprehensive understanding of anisotropy characteristics and fracture modes for weakly anisotropic rocks is required for engineering safety and energy exploitation. To investigate the fracture mechanisms, the uniaxial compression testing with AE (acoustic emission) technique is implemented on the weakly anisotropic sandstone because of its capability to provide the essential and frequently-used mechanical parameters. This research first adopts the longitudinal wave velocity and T-2 spectrum to validate the weak anisotropy of the bedded sandstone. The results experimentally indicate that both uniaxial compressive strength and Young's modulus have a negligible dependence on different bedding orientation angles, but both permeability and macroscopic failure patterns are considerably controlled by the bedding direction. The conventional AE index analysis indicates that the tension-dependent failure occurs in the bedded sandstone under the uniaxial compression. Interestingly, the developed k-means clustering method is consistent with both the latest crack classification concept and macroscopic failure patterns. |
| 学科主题 | Engineering ; Materials Science |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000982683200001 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/34827]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.Guizhou University; 2.Chinese Academy of Sciences; Wuhan Institute of Rock & Soil Mechanics, CAS |
| 推荐引用方式 GB/T 7714 | Zheng, Kun,Wang, Chaolin,Zhao, Yu,et al. Assessment on anisotropy degree and fracture modes for weakly anisotropic sandstone using the acoustic emission technique[J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,2023,46(8):2766. |
| APA | Zheng, Kun,Wang, Chaolin,Zhao, Yu,Bi, Jing,&Zhang, Hua.(2023).Assessment on anisotropy degree and fracture modes for weakly anisotropic sandstone using the acoustic emission technique.FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,46(8),2766. |
| MLA | Zheng, Kun,et al."Assessment on anisotropy degree and fracture modes for weakly anisotropic sandstone using the acoustic emission technique".FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES 46.8(2023):2766. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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