Discrete Element Simple Shear Test Considering Particle Shape
Source abstract
Abstract
The particle shape has significant effects on the slip and rotation of particles in the shear of geomaterials, which is an important factor in the deformation and strength of geomaterials. This paper employed particle flow code (PFC3D) to simulate the simple shear test, and ellipsoidal particles with different aspect ratios were prepared to study the effects of particle shape on the mechanical behavior and fabric evolution of granular materials under complex stress paths. The numerical results show that the particle shape has a significant effect on the peak strength, dilatancy, non-coaxiality, and other mechanical properties of granular materials. The contact fabric evolves from orthotropy to transverse isotropy under the principal stress axes rotation. This paper will provide a reference for natural granular materials with different shapes in the study of mechanical behavior and the micro-constitutive model.
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Research context
OpenAlex topics: Landslides and related hazards · Geotechnical Engineering and Soil Mechanics · Granular flow and fluidized beds
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Civil and Hydraulic Engineering, Ningxia University, Yinchuan 750021, China
Solid Mechanics Institute, Ningxia University, Yinchuan 750021, China
Funding
Projects for Leading Talents of Science and Technology Innovation of Ningxia · National Natural Science Foundation of China · the innovation team for multi-scale mechanics and its engineering applications of Ningxia Hui Autonomous Region
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