Combination of an adaptive remeshing technique with a coupled FEM–DEM approach for analysis of crack propagation problems
This paper presents an enhanced coupled approach between the finite element method
(FEM) and the discrete element method (DEM) in which an adaptive remeshing technique …
(FEM) and the discrete element method (DEM) in which an adaptive remeshing technique …
Experimental and numerical investigation of influence of air-voids on the compressive behaviour of foamed concrete
A combined experimental and numerical approach is proposed in this study for the
characterisation of the mechanical behaviour of foamed geopolymer concretes. Advanced …
characterisation of the mechanical behaviour of foamed geopolymer concretes. Advanced …
A micromechanical investigation for the effects of pore size and its distribution on geopolymer foam concrete under uniaxial compression
This study investigates the influences of pore-structure and mortar properties on the fracture
behaviour of geopolymer foamed concrete. The discrete element method (DEM) is utilised to …
behaviour of geopolymer foamed concrete. The discrete element method (DEM) is utilised to …
Evaluation of fracture behavior of high-strength hydraulic concrete damaged by freeze-thaw cycle test
X Zhu, X Chen, Y Bai, Y Ning, W Zhang - Construction and Building …, 2022 - Elsevier
Hydraulic concrete structures in cold regions are vulnerable to freeze–thaw (FT) damage,
which will affect the fracture performance of concrete structures. Hence, the fracture …
which will affect the fracture performance of concrete structures. Hence, the fracture …
A cohesive damage-plasticity model for DEM and its application for numerical investigation of soft rock fracture properties
The failure of soft rocks is highly concerned in both research and practice due to the
vulnerability of materials and its involvement in a wide range of foundation and mine …
vulnerability of materials and its involvement in a wide range of foundation and mine …
Experimental and numerical research on triaxial mechanical behavior of self-compacting concrete subjected to freeze–thaw damage
X Zhu, X Chen, N Zhang, X Wang, H Diao - Construction and Building …, 2021 - Elsevier
Considering that freeze–thaw (FT) damage has a serious degradation effect on the
performance of concrete materials in cold regions and constraint is a common boundary …
performance of concrete materials in cold regions and constraint is a common boundary …
DEM analysis of failure mechanisms in the intact Brazilian test
A comprehensive numerical study is conducted to examine the failure behaviors in the intact
Brazilian test. Brazilian test is considered a robust laboratory test to obtain an indirect …
Brazilian test. Brazilian test is considered a robust laboratory test to obtain an indirect …
A novel prediction model for failure mechanism of foamed concrete
X Zhu, P Lei - Construction and Building Materials, 2023 - Elsevier
In this paper, the effect of pore structure and cement paste characteristics on the mechanical
properties of foamed concrete are studied by means of the test and discrete element method …
properties of foamed concrete are studied by means of the test and discrete element method …
Numerical modelling of granular materials with spherical discrete particles and the bounded rolling friction model. Application to railway ballast
Abstract The Discrete Element Method (DEM) was found to be an effective numerical
method for the calculation of engineering problems involving granular materials. However …
method for the calculation of engineering problems involving granular materials. However …
A discrete element modelling approach for fatigue damage growth in cemented materials
This study proposes a modelling approach capable of capturing both the fatigue response
and localisation of failure in cemented materials. This modelling approach takes advantage …
and localisation of failure in cemented materials. This modelling approach takes advantage …