DEM analysis of the effect of interface transition zone on dynamic splitting tensile behavior of high-strength concrete based on multi-phase model

X Zhou, Y Xie, G Long, X Zeng, J Li, L Yao… - Cement and Concrete …, 2021 - Elsevier
The tensile strength is one of the main parameters in the design of concrete structures and
has an important influence on the cracking performance and durability of concrete materials …

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

H Yang, H Lin, Y Chen, Y Wang, Y Zhao… - Bulletin of Engineering …, 2022 - Springer
The wing cracks are usually the first crack that appears in the loading process in studies
about fractured rocks, and a certain correlation exists between the wing crack propagation …

Effect of surface characteristics of aggregates on the compressive damage of high-strength concrete based on 3D discrete element method

X Zhou, Y Xie, G Long, J Li - Construction and Building Materials, 2021 - Elsevier
As the main component of concrete, aggregate has an important influence on the
performance of concrete. In this study, the influence of coarse aggregate content and surface …

Statistical damage constitutive model based on the Hoek–Brown criterion

Y Chen, H Lin, Y Wang, S Xie, Y Zhao… - Archives of Civil and …, 2021 - Springer
The constitutive models of rock are essentially the general depictions of the mechanical
responses of rock mass under complex geological environments. Statistical distribution …

[HTML][HTML] Rock shear creep modelling: DEM–Rate process theory approach

JG Gutiérrez-Ch, S Senent, EP Graterol, P Zeng… - International Journal of …, 2023 - Elsevier
Understanding the rock creep behavior is necessary to determine the long-term strength and
safety of several geotechnical designs. There are several formulations to study the rock …

Damage characteristics of shear strength of joints under freeze–thaw cycles

D Lei, H Lin, Y Wang - Archive of Applied Mechanics, 2022 - Springer
The freeze–thaw cycles and joint will deteriorate the strength characteristics of jointed rock
mass and may lead to geotechnical failures in cold regions. Former studies mainly focus on …

A meso/macroscale theoretical model for investigating the large deformation of soft rock tunnels considering creep and anisotropic effects

C Xia, Z Liu, C Zhou, L Zhang - Rock Mechanics and Rock Engineering, 2023 - Springer
The rheological deformation of soft rock resulting from tunnel excavation can lead to
significant construction and safety challenges. In this study, a multiphase numerical model …

Influence of end friction confinement on dynamic mechanical properties and damage evolution of concrete by coupled DEM-FDM method

X Zhou, Y Xie, G Long, X Zeng, J Li, N Li… - Engineering Fracture …, 2023 - Elsevier
This paper presents a quantitative evaluation of the effect of end friction on the dynamic
mechanical response and damage evolution of concrete based on the coupled Discrete …

Characteristics of stress, crack evolution, and energy conversion of anchored granite containing two preexisting fissures under uniaxial compression

W Guanping, H Jianhua, W Jie, Y Dongjie… - Bulletin of Engineering …, 2023 - Springer
In this study, uniaxial compression experiments were conducted of granite specimens
containing two preexisting fissures to investigate the effect of bolts on mechanical behaviour …

Shear fracture behavior and damage constitutive model of rock joints considering the effect of pre-peak cyclic loading

Q Gu, Q Zhang, S Ye, W Dai, T Li - Theoretical and Applied Fracture …, 2024 - Elsevier
The research on mechanical properties and fracture nalysed of rock joints under dynamic
loading disturbance is essential for the stability analysis of rock mass engineering. In this …