Deformation and Acoustic Emission Characteristics of Cracked Granite during Creep
Joint Authors
Wang, Chunping
Xie, Jingli
Liu, Jian
Source
Advances in Materials Science and Engineering
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-03-11
Country of Publication
Egypt
No. of Pages
11
Abstract EN
A series of multistage creep tests under different confining pressures with acoustic emission monitoring have been performed to investigate the deformation characteristic and failure process of cracked granite during creep.
The critical axial strain of cracked sample showed an increasing tendency with the increase of confining pressure.
In contrast, critical lateral strain experienced a process of descending first at low confinement and then remaining nearly constant at high confinement.
Compared with loading-cracked specimen, smaller critical axial strain, greater critical lateral strain, and higher lateral creep strain rate were found for unloading-cracked specimen.
Based on the spatial and temporal distribution of acoustic emission events, the cracking process during creep was analysed.
The AE events with high energy are mainly concentrated at the final fracture area of the specimen.
The higher the confining pressure, the more the AE events with low energy.
Compared with the loading-cracked specimen, the percentage of AE events with high energy is relatively small for the unloading-cracked specimen.
American Psychological Association (APA)
Wang, Chunping& Xie, Jingli& Liu, Jian. 2020. Deformation and Acoustic Emission Characteristics of Cracked Granite during Creep. Advances in Materials Science and Engineering،Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1129005
Modern Language Association (MLA)
Wang, Chunping…[et al.]. Deformation and Acoustic Emission Characteristics of Cracked Granite during Creep. Advances in Materials Science and Engineering No. 2020 (2020), pp.1-11.
https://search.emarefa.net/detail/BIM-1129005
American Medical Association (AMA)
Wang, Chunping& Xie, Jingli& Liu, Jian. Deformation and Acoustic Emission Characteristics of Cracked Granite during Creep. Advances in Materials Science and Engineering. 2020. Vol. 2020, no. 2020, pp.1-11.
https://search.emarefa.net/detail/BIM-1129005
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1129005