A Unified Nonlinear Elastic Model for Rock Material

Article Engineering, Environmental

Influence of wing crack propagation on the failure process and strength of fractured specimens

Hengtao Yang et al.

Summary: This study explores the correlation between wing crack propagation and the peak strength of specimens through compression tests and numerical simulations. The results show that specimens with prefabricated wing cracks exhibit more plasticity during the loading process, while the length of the prefabricated wing cracks does not affect the peak strength of the specimen.

BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT (2022)

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Article Engineering, Civil

New constitutive model based on disturbed state concept for shear deformation of rock joints

Shijie Xie et al.

Summary: This paper presents a new constitutive model for joint shear deformation in rocks based on the disturbed state concept (DSC) theory. The model considers the characteristics of different stages in the process of joint shear deformation and connects the mechanical behavior of micro-units with the macroscopic deformation characteristics of joints using the DSC theory. The model is simple in form, less in parameters, and reasonable in physical meaning. It has been validated using experimental data and shows better performance compared to existing models.

ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING (2022)

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Article

Statistical thermal damage constitutive model of rocks based on Weibull distribution

Zhennan Zhu et al.

Arabian Journal of Geosciences (2021)

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Article Engineering, Civil

Creep damage model of rock mass under multi-level creep load based on spatio-temporal evolution of deformation modulus

Xing Zhang et al.

Summary: This study establishes a damage model for rock mass under multi-level creep load based on damage variables and evolution equations, showing that time and stress play significant roles in rock mass damage, with damage primarily influenced by stress response and increasing with time and stress levels.

ARCHIVES OF CIVIL AND MECHANICAL ENGINEERING (2021)

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Article Engineering, Geological