Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Analytical, Numerical and Physical Models Vol. 14, No. 53 (2020)

Experimental and analytical investigation on the coupled elastoplastic damage model of coal-rock: The investigation on damage model of coal-rock

Author and affiliation details
  • Yundong Shou Corresponding author School of Civil Engineering, Wuhan University, China shouyundong@whu.edu.cn
  • Jianwei Zhang School of Civil Engineering, Chongqing University, China
  • Filippo Berto Norwegian University of Science and Technology, Norway
DOI
10.3221/IGF-ESIS.53.34
Pages
434-445
Published
Licence
CC BY 4.0
Published inVol. 14, No. 53 (2020)Go to the issue

Abstract

In this paper, a novel coupled elastoplastic damage model for coal-rock is proposed to predict the deformation and potential disaster in coal mining. The conditions of small deformation and thermodynamic potential are considered, as well as the coupling of damage evolution process with the plastic deformation and the plastic hardening of coal-rock. Based on the theory of damage mechanics, the formulas of damage evolution, plastic yield and plastic potential of coal-rock are deduced theoretically. In addition, triaxial compression tests of coal-rock under the different confining stresses are conducted to reveal the law of deviatoric stress and strain. Based on the experimental data, the control parameters of the coupled elastoplastic damage model of coal-rock are determined. The theoretical results obtained from the coupled elastoplastic damage model for coal-rock agree well with those from the experiment. The proposed model is reasonable to predict the deformation of coal-rock.

Keywords

Article history

  1. ReceivedUntil the next stage: 13 days
  2. Revision requestedUntil the next stage: 29 days
  3. RevisedUntil the next stage: 1 day
  4. AcceptedUntil the next stage: 44 days
  5. Published

How to cite

APA

Shou, Y., Zhang, J., & Berto, F. (2020). Experimental and analytical investigation on the coupled elastoplastic damage model of coal-rock: The investigation on damage model of coal-rock. Fracture and Structural Integrity, 14(53), 434–445. https://doi.org/10.3221/IGF-ESIS.53.34

IEEE

Y. Shou, J. Zhang, and F. Berto, “Experimental and analytical investigation on the coupled elastoplastic damage model of coal-rock: The investigation on damage model of coal-rock,” Fracture and Structural Integrity, vol. 14, no. 53, pp. 434–445, 2020, doi: 10.3221/IGF-ESIS.53.34.

MLA

Shou, Yundong, et al. “Experimental and analytical investigation on the coupled elastoplastic damage model of coal-rock: The investigation on damage model of coal-rock.” Fracture and Structural Integrity, vol. 14, no. 53, 2020, pp. 434–445. https://doi.org/10.3221/IGF-ESIS.53.34.

Chicago

Shou, Yundong, Jianwei Zhang, and Filippo Berto. 2020. “Experimental and analytical investigation on the coupled elastoplastic damage model of coal-rock: The investigation on damage model of coal-rock.” Fracture and Structural Integrity 14 (53): 434–445. https://doi.org/10.3221/IGF-ESIS.53.34.

Harvard

Shou, Y., Zhang, J. and Berto, F. (2020) ‘Experimental and analytical investigation on the coupled elastoplastic damage model of coal-rock: The investigation on damage model of coal-rock’, Fracture and Structural Integrity, 14(53), pp. 434–445. doi: 10.3221/IGF-ESIS.53.34.

Vancouver

Shou Y, Zhang J, Berto F. Experimental and analytical investigation on the coupled elastoplastic damage model of coal-rock: The investigation on damage model of coal-rock. Fracture and Structural Integrity. 2020;14(53):434-445. doi:10.3221/IGF-ESIS.53.34

BibTeX

@article{shou2020, author = {Shou, Yundong and Zhang, Jianwei and Berto, Filippo}, title = {Experimental and analytical investigation on the coupled elastoplastic damage model of coal-rock: The investigation on damage model of coal-rock}, journal = {Fracture and Structural Integrity}, year = {2020}, volume = {14}, number = {53}, pages = {434--445}, doi = {10.3221/IGF-ESIS.53.34}, url = {https://doi.org/10.3221/IGF-ESIS.53.34}, issn = {1971-8993} }

RIS

TY - JOUR AU - Shou, Yundong AU - Zhang, Jianwei AU - Berto, Filippo TI - Experimental and analytical investigation on the coupled elastoplastic damage model of coal-rock: The investigation on damage model of coal-rock JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2020 DA - 2020/07/19 VL - 14 IS - 53 SP - 434 EP - 445 DO - 10.3221/IGF-ESIS.53.34 UR - https://doi.org/10.3221/IGF-ESIS.53.34 SN - 1971-8993 ER -

Licence

Creative Commons Attribution 4.0 International

May be shared and adapted, provided appropriate credit is given. Copyright © 2020 Yundong Shou, Jianwei Zhang, Filippo Berto.

Copyright 
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.  

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