Acoustic Emission Behavior of Rock-Like Material Containing Two Flaws in the Process of Deformation Failure
Many sudden disasters (such as rock burst) by mining extraction originate in crack initiation and propagation. Meanwhile a large number of shock waves are produced by rock deformation and failure. With the purpose of investigating crack coalescence and failure mechanism in rock, experimental researc...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2015-01-01
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| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2015/167580 |
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| _version_ | 1849401546443325440 |
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| author | Quan-Sheng Liu Jie Xu Bin Liu Jing-Dong Jiang |
| author_facet | Quan-Sheng Liu Jie Xu Bin Liu Jing-Dong Jiang |
| author_sort | Quan-Sheng Liu |
| collection | DOAJ |
| description | Many sudden disasters (such as rock burst) by mining extraction originate in crack initiation and propagation. Meanwhile a large number of shock waves are produced by rock deformation and failure. With the purpose of investigating crack coalescence and failure mechanism in rock, experimental research of rock-like materials with two preexisting flaws was performed. Moreover, the AE technique and photographic monitoring were adopted to clarify further the procedure of the crack coalescence and failure. It reveals that AE location technique can record the moments of crack occurrences and follow the crack growth until final failure. Finally, the influence of different flaw geometries on crack initiation strength is analyzed in detail. This research provides increased understanding of the fracture mechanism of mining-induced disasters. |
| format | Article |
| id | doaj-art-8cf5d507fc6c494c97da40f501beb7e8 |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-8cf5d507fc6c494c97da40f501beb7e82025-08-20T03:37:44ZengWileyShock and Vibration1070-96221875-92032015-01-01201510.1155/2015/167580167580Acoustic Emission Behavior of Rock-Like Material Containing Two Flaws in the Process of Deformation FailureQuan-Sheng Liu0Jie Xu1Bin Liu2Jing-Dong Jiang3School of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, ChinaSchool of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, ChinaInstitute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, Hubei 430071, ChinaSchool of Civil Engineering, Wuhan University, Wuhan, Hubei 430072, ChinaMany sudden disasters (such as rock burst) by mining extraction originate in crack initiation and propagation. Meanwhile a large number of shock waves are produced by rock deformation and failure. With the purpose of investigating crack coalescence and failure mechanism in rock, experimental research of rock-like materials with two preexisting flaws was performed. Moreover, the AE technique and photographic monitoring were adopted to clarify further the procedure of the crack coalescence and failure. It reveals that AE location technique can record the moments of crack occurrences and follow the crack growth until final failure. Finally, the influence of different flaw geometries on crack initiation strength is analyzed in detail. This research provides increased understanding of the fracture mechanism of mining-induced disasters.http://dx.doi.org/10.1155/2015/167580 |
| spellingShingle | Quan-Sheng Liu Jie Xu Bin Liu Jing-Dong Jiang Acoustic Emission Behavior of Rock-Like Material Containing Two Flaws in the Process of Deformation Failure Shock and Vibration |
| title | Acoustic Emission Behavior of Rock-Like Material Containing Two Flaws in the Process of Deformation Failure |
| title_full | Acoustic Emission Behavior of Rock-Like Material Containing Two Flaws in the Process of Deformation Failure |
| title_fullStr | Acoustic Emission Behavior of Rock-Like Material Containing Two Flaws in the Process of Deformation Failure |
| title_full_unstemmed | Acoustic Emission Behavior of Rock-Like Material Containing Two Flaws in the Process of Deformation Failure |
| title_short | Acoustic Emission Behavior of Rock-Like Material Containing Two Flaws in the Process of Deformation Failure |
| title_sort | acoustic emission behavior of rock like material containing two flaws in the process of deformation failure |
| url | http://dx.doi.org/10.1155/2015/167580 |
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