The role of flaws on crack growth in rock-like material assessed by AE technique
文献类型：期刊论文
| 作者 | Liu, Quansheng1,2; Xu, Jie1; Liu, Xuewei2; Jiang, Jingdong1; Liu, Bin2 |
| 刊名 | INTERNATIONAL JOURNAL OF FRACTURE
 |
| 出版日期 | 2015 |
| 卷号 | 193期号:2页码:99-115 |
| 关键词 | Rock-like samples AE and photographic monitoring Crack coalescence and failure Real time AE location method Fracture mechanism |
| ISSN号 | 0376-9429 |
| DOI | 10.1007/s10704-015-0021-6 |
| 英文摘要 | Experiments for the rectangular rock-like samples (made of high-strength gypsum and water-cement ratio is 1) with two parallel pre-existing flaws subjected to uniaxial compression were carried out to further investigate the influence of varying flaw geometries on mechanical properties and crack coalescence behaviors. According to the tests results, eight crack types were characterized on a basis of the mechanisms of crack nucleation, formation and propagation, and seven coalescence modes occurred through the ligament, including S-mode, M1-mode, M2-mode, M3-mode, T1-mode, T2-mode and T3-mode. The AE and photographic monitoring techniques were adopted to further clarify the procedure of the crack coalescence and failure during uniaxial compression tests and in consequence the whole process of crack emergence, growth, coalescence and failure was recorded in real time. The results of AE technique revealed that the characteristics of acoustic emission energy associate with crack coalescence modes, and AE location method can emphasize the moments of crack occurrences and follow the crack growth until final failure. This study put forward better understanding of the fracture and failure mechanism of underground rock engineering, like rock burst. |
| WOS研究方向 | Materials Science ; Mechanics |
| 语种 | 英语 |
| WOS记录号 | WOS:000357572600001 |
| 出版者 | SPRINGER |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/3731]  |
| 专题 | 岩土力学所知识全产出_期刊论文 |
| 作者单位 | 1.Wuhan Univ, Sch Civil Engn ; 2.Chinese Acad Sci, Inst Rock & Soil Mech |
| 推荐引用方式 GB/T 7714 | Liu, Quansheng,Xu, Jie,Liu, Xuewei,et al. The role of flaws on crack growth in rock-like material assessed by AE technique[J]. INTERNATIONAL JOURNAL OF FRACTURE,2015,193(2):99-115. |
| APA | Liu, Quansheng,Xu, Jie,Liu, Xuewei,Jiang, Jingdong,&Liu, Bin.(2015).The role of flaws on crack growth in rock-like material assessed by AE technique.INTERNATIONAL JOURNAL OF FRACTURE,193(2),99-115. |
| MLA | Liu, Quansheng,et al."The role of flaws on crack growth in rock-like material assessed by AE technique".INTERNATIONAL JOURNAL OF FRACTURE 193.2(2015):99-115. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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