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Effects of Frequency on the Dynamic Properties of Intact Rock Samples Subjected to Cyclic Loading under Confining Pressure Conditions
Liu, Enlong2,3; Huang, Runqiu2; He, Siming1
Corresponding AuthorHe, Siming
2012
Source PublicationROCK MECHANICS AND ROCK ENGINEERING
ISSN0723-2632
Volume45Issue:1Pages:89-102
SubtypeArticle
AbstractA 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.
KeywordFrequency Dynamic Properties Cyclic Loading Confining Pressure Dynamic Stiffness
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1007/s00603-011-0185-y
WOS Subject ExtendedEngineering ; Geology
Indexed BySCI
WOS KeywordSTRAIN-RATE ; MECHANICAL-PROPERTIES ; FATIGUE PROPERTIES ; SANDSTONE SAMPLES ; BEHAVIOR ; DAMAGE ; STRENGTH
Language英语
Quartile4区
TOP
WOS SubjectEngineering, Geological ; Geosciences, Multidisciplinary
WOS IDWOS:000300169000008
Funding OrganizationState Key Laboratory of Geohazard Prevention and Geoenvironment Protection(SKLGP2011K006)
Citation statistics
Cited Times:67[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/9919
Collection山地灾害与地表过程重点实验室
Affiliation1.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
Recommended Citation
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.
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