A Statistical Constitutive Model considering Deterioration for Brittle Rocks under a Coupled Thermal-Mechanical Condition
Joint Authors
Li, Tianbin
Gao, Meiben
Wei, Tao
Meng, Lubo
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-07-30
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Due to active actions of groundwater and geothermal, the stability of underground engineering is important during geological structure active area.
The damage mechanical theory and statistical mesoscopic strength theory based on Weibull distribution are widely used to discuss constitutive behaviors of rocks.
In these theories, a statistical method is used to capture mesoscopic properties of rocks in order to generate a realistic behavior at a macroscopic scale.
Based on the above theories, this paper aims at establishing a constitutive relation of brittle rocks under thermal-mechanical coupling conditions.
First, a statistical damage constitutive model was established by considering the thermal effects and crack initiation strength.
Subsequently, the parameters of the model were determined and expressed according to the characteristics of stress-strain curve.
Third, the model was verified by conventional triaxial experiments under thermal-mechanical actions, and the experimental data and theoretical results were compared and analyzed in the case study.
Finally, the physical meaning of the parameters and their effects on the model performance were discussed.
American Psychological Association (APA)
Gao, Meiben& Li, Tianbin& Wei, Tao& Meng, Lubo. 2018. A Statistical Constitutive Model considering Deterioration for Brittle Rocks under a Coupled Thermal-Mechanical Condition. Geofluids،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1157550
Modern Language Association (MLA)
Gao, Meiben…[et al.]. A Statistical Constitutive Model considering Deterioration for Brittle Rocks under a Coupled Thermal-Mechanical Condition. Geofluids No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1157550
American Medical Association (AMA)
Gao, Meiben& Li, Tianbin& Wei, Tao& Meng, Lubo. A Statistical Constitutive Model considering Deterioration for Brittle Rocks under a Coupled Thermal-Mechanical Condition. Geofluids. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1157550
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1157550