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Effects of Frequency on the Dynamic Properties of Intact Rock Samples Subjected to Cyclic Loading under Confining Pressure Conditions
文献类型：期刊论文
| 作者 | Liu, Enlong2,3; Huang, Runqiu2; He, Siming1
|
| 刊名 | ROCK MECHANICS AND ROCK ENGINEERING
 |
| 出版日期 | 2012 |
| 卷号 | 45期号:1页码:89-102 |
| 关键词 | Frequency Dynamic properties Cyclic loading Confining pressure Dynamic stiffness |
| ISSN号 | 0723-2632 |
| 通讯作者 | He, Siming |
| 英文摘要 | A series of laboratory tests was performed to assess the effects of frequency on the dynamic properties of sandstone samples subjected to cyclic loading in the confining stress state. Three levels of confining pressure (2.0, 10.0, and 40.0 MPa) and three sets of frequencies (0.1, 1.0, and 3.0 Hz) were applied for the axial cyclic loading tests by the MTS-815 Rock and Concrete Test System. The results from the cyclic loading tests indicate that frequency has a strong influence on the dynamic deformation, the dynamic stiffness, and the failure mode at the same confining pressure. With an increase in the frequency, the axial strain and the number of cycles at failure increased at the same confining pressure, the residual volumetric strain increased when dilatancy occurred at the same confining pressure, and the number of cycles at failure increased. A new damage variable D was defined that describes the degradation process of sandstone samples upon dynamic cyclic loading. The larger the frequency, the wider the localized band. Sandstone samples subjected to dynamic cyclic loading responded with a significantly higher initial stiffness. The higher the initial stiffness, the greater the frequency. |
| WOS标题词 | Science & Technology ; Technology ; Physical Sciences |
| 类目[WOS] | Engineering, Geological ; Geosciences, Multidisciplinary |
| 研究领域[WOS] | Engineering ; Geology |
| 关键词[WOS] | STRAIN-RATE ; MECHANICAL-PROPERTIES ; FATIGUE PROPERTIES ; SANDSTONE SAMPLES ; BEHAVIOR ; DAMAGE ; STRENGTH |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000300169000008 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/9919]  |
| 专题 | 成都山地灾害与环境研究所_山地灾害与地表过程重点实验室 |
| 作者单位 | 1.CAS, Key Lab Mt Hazards & Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Peoples R China 2.Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Pro, Chengdu 610059, Peoples R China 3.Sichuan Univ, Coll Water Resources & Hydropower, State Key Lab Hydraul & Mt River Engn, Chengdu 610065, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Enlong,Huang, Runqiu,He, Siming. Effects of Frequency on the Dynamic Properties of Intact Rock Samples Subjected to Cyclic Loading under Confining Pressure Conditions[J]. ROCK MECHANICS AND ROCK ENGINEERING,2012,45(1):89-102. |
| APA | Liu, Enlong,Huang, Runqiu,&He, Siming.(2012).Effects of Frequency on the Dynamic Properties of Intact Rock Samples Subjected to Cyclic Loading under Confining Pressure Conditions.ROCK MECHANICS AND ROCK ENGINEERING,45(1),89-102. |
| MLA | Liu, Enlong,et al."Effects of Frequency on the Dynamic Properties of Intact Rock Samples Subjected to Cyclic Loading under Confining Pressure Conditions".ROCK MECHANICS AND ROCK ENGINEERING 45.1(2012):89-102. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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