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Numerical Analysis of Fracture Behaviour on Marble Samples Containing Two Flaws
Joint Authors
Zheng, Lifei
Huang, Dan
Li, Xiaoqing
Hu, Xuan
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-01-30
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
Uniaxial compression tests were conducted on marble specimens containing two flaws.
There are coplanar flaws and noncoplanar flaws.
The inclination angle and spacing of flaws were considered of the coplanar flaws model, and the step angle and spacing of flaws were considered of the noncoplanar flaws model.
Strength failure and crack coalescence behaviour were analysed in the paper.
The crack evolution process containing microcrack initiation, coalescence, and failure is focused on the rock bridge coalescence and the extent of the pre-existing flaws.
There are four forms of rock bridge coalescence: tensile crack coalescence, shear crack coalescence, mixed tensile and shear crack coalescence, and no coalescence.
Also, there are four forms of the rock failure mode: tensile failure, shear failure, mixed tensile and shear failure, and split fracture.
The outer end of the critical stress values were used to compare with the crack initiation strengths, and the crack initiation strengths were slightly larger than the critical stress.
In addition, energy dissipation laws were analysed during the model fracturing process.
The crack evolution mechanisms around the pre-existing flaw in the model were revealed by the distribution of microcrack and energy dissipation.
American Psychological Association (APA)
Zheng, Lifei& Huang, Dan& Li, Xiaoqing& Hu, Xuan. 2020. Numerical Analysis of Fracture Behaviour on Marble Samples Containing Two Flaws. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1122178
Modern Language Association (MLA)
Zheng, Lifei…[et al.]. Numerical Analysis of Fracture Behaviour on Marble Samples Containing Two Flaws. Advances in Civil Engineering No. 2020 (2020), pp.1-15.
https://search.emarefa.net/detail/BIM-1122178
American Medical Association (AMA)
Zheng, Lifei& Huang, Dan& Li, Xiaoqing& Hu, Xuan. Numerical Analysis of Fracture Behaviour on Marble Samples Containing Two Flaws. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-15.
https://search.emarefa.net/detail/BIM-1122178
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1122178