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Symmetry 2019, 11(1), 41;

Statistical Damage Model of Altered Granite under Dry-Wet Cycles

1,2,* , 1,2,* , 3
School of Civil and Architectural Engineering, Beijing Jiaotong University, Beijing 100044, China
Tunneling and Underground Engineering Research Center of Ministry of Education, Beijing 100044, China
School of Civil Engineering and Architecture, Shandong University of Science and Technology, Qingdao 266590, China
Authors to whom correspondence should be addressed.
Received: 4 December 2018 / Revised: 18 December 2018 / Accepted: 25 December 2018 / Published: 2 January 2019
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This paper presents a new statistical damage constitutive model using symmetric normal distribution. The broken rock microbody obeyed symmetric normal distribution and the equivalent strain principle in damage mechanics. The uniaxial compression tests of samples subjected to dry-wet cycles were performed. The damage model was established using the equivalent strain principle and symmetric normal distribution. The damage variable was defined by the elastic modulus under various dry-wet cycles. Parameters of the damage constitutive model were identified using MATLAB software, and the proposed model is verified to be in good agreement with uniaxial compression test results. Fracturing of the rock microbody is well described by symmetric normal distribution, and the proposed statistical damage constitutive model has good adaptability to the uniaxial compression stress-strain curve. View Full-Text
Keywords: dry-wet cycles; symmetric normal distribution; damage variable; equivalent strain principle dry-wet cycles; symmetric normal distribution; damage variable; equivalent strain principle

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Chen, X.; He, P.; Qin, Z.; Li, J.; Gong, Y. Statistical Damage Model of Altered Granite under Dry-Wet Cycles. Symmetry 2019, 11, 41.

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