A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A discrete element model of concrete under high triaxial loading
Abstract A numerical model based on a three dimensional Discrete Element Method (DEM) has been used to study the behavior of concrete under high-confining pressures (up to 650MPa). At this range of pressures, irreversible compaction of the material occurs and needs to be considered. Within the discontinuous nature of the model, a local constitutive law has been developed to reproduce this phenomenon quantitatively. Local parameters to be used in this constitutive law are identified by simulating reference uniaxial and triaxial experimental tests in compression. Once these parameters have been obtained, the model is used to predict the response of concrete sample for triaxial compressive tests at different levels of confinement. Beyond the macroscopic volumetric and stress–strain response, the model gives interesting insights on the local evolution of the nature of the interaction forces between the discrete elements. The computational implementation has been carried out in the discrete element and open source code YADE (http://yade-dem.org).
A discrete element model of concrete under high triaxial loading
Abstract A numerical model based on a three dimensional Discrete Element Method (DEM) has been used to study the behavior of concrete under high-confining pressures (up to 650MPa). At this range of pressures, irreversible compaction of the material occurs and needs to be considered. Within the discontinuous nature of the model, a local constitutive law has been developed to reproduce this phenomenon quantitatively. Local parameters to be used in this constitutive law are identified by simulating reference uniaxial and triaxial experimental tests in compression. Once these parameters have been obtained, the model is used to predict the response of concrete sample for triaxial compressive tests at different levels of confinement. Beyond the macroscopic volumetric and stress–strain response, the model gives interesting insights on the local evolution of the nature of the interaction forces between the discrete elements. The computational implementation has been carried out in the discrete element and open source code YADE (http://yade-dem.org).
A discrete element model of concrete under high triaxial loading
Tran, V.T. (author) / Donzé, F.-V. (author) / Marin, P. (author)
Cement and Concrete Composites ; 33 ; 936-948
2011-01-04
13 pages
Article (Journal)
Electronic Resource
English
A discrete element model of concrete under high triaxial loading
| Online Contents | 2011
High Strength Concrete under Biaxial and Triaxial Loading
| British Library Conference Proceedings | 2002
Discrete element modelling of railway ballast under monotonic and cyclic triaxial loading
| British Library Online Contents | 2010
Discrete element modelling of railway ballast under monotonic and cyclic triaxial loading
| Online Contents | 2010