Coupled microplane and micromechanics model for describing the damage and plasticity evolution of quasi-brittle material

L Kong, H Xie, C Li - International Journal of Plasticity, 2023 - Elsevier
Quasi-brittle materials exhibit significant heterogeneity due to their complex mesoscopic
components and microdefects, and their macroscopic mechanical behavior depends …

A dynamic elastoplastic model of concrete based on a modeling method with environmental factors as constitutive variables

D Lu, F Meng, X Zhou, Y Zhuo, Z Gao… - Journal of Engineering …, 2023 - ascelibrary.org
This paper develops a modeling method with an incremental stress–strain–environment
constitutive model to predict the change in the plastic mechanical behavior of concrete …

Estimation of elastic properties and failure strength of layered rocks with a multi-scale damage approach

LY Zhao, L Ren, FJ Niu, YM Lai, QZ Zhu… - International Journal of …, 2023 - Elsevier
Layered rocks (LR) are composed of intact rock matrix (IRM) and various oriented rough
weakness planes (eg, fractures, bedding planes, and foliations). New microcracks can also …

Seismic performance of underground structures improved by using PET FRP retrofitting central columns

C Ma, K Li, H Gao, D Lu, G Wang, X Du - Tunnelling and Underground …, 2023 - Elsevier
The seismic failure mechanism of underground structures presents that the insufficient
lateral deformation capacity of central columns will result in the collapse of the overall …

[HTML][HTML] Multiscale modeling of diffuse damage and localized cracking in quasi-brittle materials under compression with a quadratic friction law

LY Zhao, L Ren, LH Liu, YM Lai, FJ Niu… - International Journal of …, 2024 - Elsevier
The diffuse damage and localized cracking of quasi-brittle materials (ie, rocks and
concretes) under compression can be delineated by a matrix-microcrack system, wherein a …

An elastoplastic damage model of concrete under cyclic loading and its numerical implementation

L Zhao, L Zhang, J Mao, Z Liu - Engineering Fracture Mechanics, 2022 - Elsevier
A novel elastoplastic damage model describing the complex mechanical behaviors such as
stiffness degradation and irreversible deformation of concrete under cyclic loading is …

Computational modeling of tool-rock frictional contact with anisotropic damage

Y Zhou, GZ Voyiadjis - Rock Mechanics and Rock Engineering, 2024 - Springer
The mechanism of frictional contact is investigated between a blunt tool and quasi-brittle
rocks with anisotropic damage. A recently developed anisotropic elasto-plastic-damage …

A 3D stochastic damage model for concrete under monotonic and cyclic loadings

Y Wang - Cement and Concrete Research, 2023 - Elsevier
A stochastic damage model previously proposed by the author and Li for concrete under
monotonic and cyclic loadings is extended to 3D stress states. Specifically, a novel …

A cohesion-friction combined hardening plastic model of concrete with the nonorthogonal flow rule: Theory and numerical implementation

D Lu, C Su, X Zhou, G Wang, X Du - Construction and Building Materials, 2022 - Elsevier
A cohesion-friction combined hardening model of concrete was developed. Combined with
the Mohr-Coulomb strength criterion, the yield curve is determined directly by the test data of …

A damage constitutive model for concrete under uniaxial compression capturing strain localization

Y Wang - Cement and Concrete Research, 2024 - Elsevier
This paper presents a damage constitutive equation capturing the feature of strain
localization and, on this basis, proposes a novel damage constitutive model for concrete …