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Study of statistical damage constitutive model of layered composite rock under triaxial compression

Yong-Sheng Liu

Yong-Sheng Liu

School of Civil Engineering and Architecture, East China Jiaotong UniversityNanchang, China
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Liu, Yong-Sheng
, 
Zhuan-Zhuan Qiu

Zhuan-Zhuan Qiu

School of Civil Engineering and Architecture, East China Jiaotong UniversityNanchang, China
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Qiu, Zhuan-Zhuan
, 
Xue-Cai Zhan

Xue-Cai Zhan

School of Civil Engineering and Architecture, East China Jiaotong UniversityNanchang, China
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Zhan, Xue-Cai
, 
Hui-Nan Liu

Hui-Nan Liu

School of Civil Engineering and Architecture, East China Jiaotong UniversityNanchang, China
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Liu, Hui-Nan
 et 
Hai-Nan Gong

Hai-Nan Gong

School of Civil Engineering and Architecture, East China Jiaotong UniversityNanchang, China
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Gong, Hai-Nan
  
12 nov. 2021
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Publié en ligne: 12 nov. 2021
Pages: 299 - 308
Reçu: 21 mars 2021
Accepté: 29 mai 2021
DOI: https://doi.org/10.2478/amns.2021.2.00048
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© 2021 Yong-Sheng Liu et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

Fig. 1

Action diagram of layered composite rock under transverse stress σ.
Action diagram of layered composite rock under transverse stress σ.

Fig. 2

Layered composite rock sample.
Layered composite rock sample.

Fig. 3

Microcomputer controlled rock triaxial test system.
Microcomputer controlled rock triaxial test system.

Fig. 4

Comparison of experimental curves and fitting curves under different confining pressures.
Comparison of experimental curves and fitting curves under different confining pressures.

Fig. 5

The influence of the parameter ɛ0 on the constitutive model.
The influence of the parameter ɛ0 on the constitutive model.

Fig. 6

The influence of the parameter m on the constitutive model.
The influence of the parameter m on the constitutive model.

Fig. 7

The influence of the parameter δ on the constitutive model.
The influence of the parameter δ on the constitutive model.

Fitting parameters under different confining pressures_

Confining pressure/MPa E/MPa δ ɛ0 m v Correlation coefficient
0 20,942 0.7192 0.004159 3.796 0.15 0.9889
5 25,618 0.7615 0.003970 3.626 0.15 0.9826
10 27,790 0.7406 0.004139 3.592 0.15 0.9941
15 22,260 0.7145 0.005430 3.486 0.15 0.9873
20 22,741 0.8990 0.007028 2.340 0.15 0.9856
Langue:
Anglais
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Sujets de la revue:
Sciences de la vie, Sciences de la vie, autres, Mathématiques, Mathématiques appliquées, Mathématiques générales, Physique, Physique, autres
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