Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
DEM exploration of the effect of particle shape on particle breakage in granular assemblies
https://orcid.org/0000-0001-5681-743X
Abstract The effect of particle shape on particle breakage is investigated through triaxial tests on sand assemblies mixed with non-spherical agglomerates using the discrete element method. Mixed assembly is generated in terms of cumulative distribution of sphericity of real sands. Comparable macro-mechanical results are found between DEM and experimental observations, including non-linear stress-strain relationship, peak deviatoric stress, and peak friction angle. More broken bonds and agglomerates numbers are generated in mixed assembly than that in spherical assembly. The hyperbolic relationship between particle breakage and energy input is found to have relevance to particle shape, and the fitting result of mixed assembly is in better accordance with real sands.
DEM exploration of the effect of particle shape on particle breakage in granular assemblies
https://orcid.org/0000-0001-5681-743X
Abstract The effect of particle shape on particle breakage is investigated through triaxial tests on sand assemblies mixed with non-spherical agglomerates using the discrete element method. Mixed assembly is generated in terms of cumulative distribution of sphericity of real sands. Comparable macro-mechanical results are found between DEM and experimental observations, including non-linear stress-strain relationship, peak deviatoric stress, and peak friction angle. More broken bonds and agglomerates numbers are generated in mixed assembly than that in spherical assembly. The hyperbolic relationship between particle breakage and energy input is found to have relevance to particle shape, and the fitting result of mixed assembly is in better accordance with real sands.
DEM exploration of the effect of particle shape on particle breakage in granular assemblies
https://orcid.org/0000-0001-5681-743X
Abstract The effect of particle shape on particle breakage is investigated through triaxial tests on sand assemblies mixed with non-spherical agglomerates using the discrete element method. Mixed assembly is generated in terms of cumulative distribution of sphericity of real sands. Comparable macro-mechanical results are found between DEM and experimental observations, including non-linear stress-strain relationship, peak deviatoric stress, and peak friction angle. More broken bonds and agglomerates numbers are generated in mixed assembly than that in spherical assembly. The hyperbolic relationship between particle breakage and energy input is found to have relevance to particle shape, and the fitting result of mixed assembly is in better accordance with real sands.
DEM exploration of the effect of particle shape on particle breakage in granular assemblies
Zhang, Tao (Autor:in) / Zhang, Chi (Autor:in) / Zou, Jiuqun (Autor:in) / Wang, Baosheng (Autor:in) / Song, Fangnian (Autor:in) / Yang, Weihao (Autor:in)
11.03.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Numerical Simulation of Particle Breakage of Granular Assemblies in Discrete Element Analyses
| DOAJ | 2019
Effect of Particle Breakage and Shape on the Mechanical Behaviors of Granular Materials
| DOAJ | 2019