Transverse Cracking of Rock with a Dissimilar Inclusion Under Tension: Effect of Loading Rate and Inclusion Diameter
文献类型：期刊论文
| 作者 | Ju, Minghe2,3,4; Li, Jianchun1; Zhao, Jian4 |
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2022-09-01 |
| 卷号 | 55期号:9页码:5513 |
| ISSN号 | 0723-2632 |
| 关键词 | Rock inclusion Brazilian disc Loading rate effect Tensile failure Composite structure |
| 英文摘要 | The rate-dependent tensile failure of rock with a cement inclusion was experimentally and numerically investigated to reveal the coupled dynamic response of inclusion-containing heterogeneous rock structures. Brazilian discs (BDs) with differently sized inclusion cores made of Portland cement were compressed using a split Hopkinson pressure bar loading system. The inclusions in the BD specimens changed the observed failure patterns compared to the splitting results observed in traditional monolithic rock BDs. The failure patterns observed in the composite rock-cement depend on the loading rate, inclusion size, and material strengths. The tensile BD failure patterns fall into three classes: single and double deflection along the interface with the inclusion and direct penetration through the heterogeneous structure. As the inclusion diameter or loading rate is increased, the failure pattern of the BD generally evolves from single to double deflection to penetration. The mechanism underlying the formation of the different failure patterns was further investigated using discrete element modelling. This paper may improve our understanding of the effect of loading rate on the failure and fracture behaviour of heterogeneous rock structures under tension. |
| 学科主题 | Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | SPRINGER WIEN |
| WOS记录号 | WOS:000814483000004 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/35353]  |
| 专题 | 中科院武汉岩土力学所 |
| 作者单位 | 1.School of Civil Engineering, Institute of Future Underground Space, Southeast University, Nanjing 211189, China 2.State Key Laboratory for Geomechanics and Deep Underground Engineering, China University of Mining and Technology, Xuzhou 211116, China 3.State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China 4.Department of Civil Engineering, Monash University, Clayton, VIC 3800, Australia |
| 推荐引用方式 GB/T 7714 | Ju, Minghe,Li, Jianchun,Zhao, Jian. Transverse Cracking of Rock with a Dissimilar Inclusion Under Tension: Effect of Loading Rate and Inclusion Diameter[J]. ROCK MECHANICS AND ROCK ENGINEERING,2022,55(9):5513. |
| APA | Ju, Minghe,Li, Jianchun,&Zhao, Jian.(2022).Transverse Cracking of Rock with a Dissimilar Inclusion Under Tension: Effect of Loading Rate and Inclusion Diameter.ROCK MECHANICS AND ROCK ENGINEERING,55(9),5513. |
| MLA | Ju, Minghe,et al."Transverse Cracking of Rock with a Dissimilar Inclusion Under Tension: Effect of Loading Rate and Inclusion Diameter".ROCK MECHANICS AND ROCK ENGINEERING 55.9(2022):5513. |
入库方式： OAI收割
来源：武汉岩土力学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。