Brittle-ductile transition and failure mechanism of Jinping marble under true triaxial compression
文献类型：期刊论文
| 作者 | Zhou, Yang-Yi2; Zhao, Jun2; Feng, Xia-Ting1,2 ; Zhang, Xi-Wei2; Zhang, Yan2; Yang, Cheng-Xiang2
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| 刊名 | ENGINEERING GEOLOGY
 |
| 出版日期 | 2018 |
| 卷号 | 232页码:160-170 |
| ISSN号 | 0013-7952 |
| 关键词 | True triaxial compression test Jinping marble Brittle-ductile transition Failure mechanism |
| DOI | 10.1016/j.enggeo.2017.11.008 |
| 英文摘要 | The research was focused on the execution of true triaxial compression tests and adopted acoustic emission (AE) and scanning electron microscopy (SEM). By doing so, the authors investigated the strength, deformation, AE, macroscopic and microscopic failure characteristics of Jinping marble in the 3-d stress space during brittle ductile failure. The results showed that under true triaxial compression, when ductile failure occurs in Jinping marble, some ductile deformation remained in the samples, even after reaching peak strength. Post-peak ductility indicates Jinping marble with a certain post-peak carrying capacity, which has an important effect on rock failure. Moreover, the magnitude of the intermediate principal stress and the minimum principal stress affect the brittle-ductile transition and failure mechanism of Jinping marble. When the minimum principal stress is small, rocks present brittle failure and split to an extent that mainly depends on tensile failure, and the brittle-ductile transition of rocks is only slightly influenced by the intermediate principal stress. Under large minimum principal stress conditions, the rock behavior gradually turns from ductile to brittle failure with increasing intermediate principal stress. When the minimum principal stress is large and the intermediate principal stress is small, rocks exhibit ductile failure (mostly shown as shear failure). Besides, when the minimum principal stress is large and the difference between minimum and intermediate principal stress is larger, brittle failure occurs along tensile-shear fractures. |
| WOS研究方向 | Engineering ; Geology |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000423895000015 |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/4199]  |
| 专题 | 岩土力学所知识全产出_期刊论文 岩土力学所知识全产出 国家重点实验室知识产出_期刊论文 |
| 作者单位 | 1.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn 2.Northeastern Univ, Key Lab, Minist Educ Safe Min Deep Met Mines ; |
| 推荐引用方式 GB/T 7714 | Zhou, Yang-Yi,Zhao, Jun,Feng, Xia-Ting,et al. Brittle-ductile transition and failure mechanism of Jinping marble under true triaxial compression[J]. ENGINEERING GEOLOGY,2018,232:160-170. |
| APA | Zhou, Yang-Yi,Zhao, Jun,Feng, Xia-Ting,Zhang, Xi-Wei,Zhang, Yan,&Yang, Cheng-Xiang.(2018).Brittle-ductile transition and failure mechanism of Jinping marble under true triaxial compression.ENGINEERING GEOLOGY,232,160-170. |
| MLA | Zhou, Yang-Yi,et al."Brittle-ductile transition and failure mechanism of Jinping marble under true triaxial compression".ENGINEERING GEOLOGY 232(2018):160-170. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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