Work

Geometric Effects on Particle Fragmentation: Numerical Perspective from Coupled Continuum-Discrete Simulations

Year: 2025

Type: conference-paper

Abstract: The challenge of realistically simulating particle fragmentation in response to structural loads is often carried out through a combination of discrete and continuum methods. The mesh-based Finite Discrete Element Method (FE-DEM) has proven effective in modeling granular materials undergoing deformation and fracture [1]. More recently, meshless methods like Peridynamics-Discrete Element Method (PD-DEM) have been adopted to simulate particle fragmentation [2]. Both methods offer advantages over DEM in representing complex morphologies. This study compared PD-DEM and FE-DEM models in terms of their ability to simulate the fragmentation of complex-shaped particles, with specific emphasis on surficial meshing strategy using α- shape. The variation in morphology, especially local roundness due to the α-shape method, was observed to significantly influence the crushing strength and breakage behavior.

Source: IOP Conference Series Earth and Environmental Science

DOI: 10.1088/1755-1315/1480/1/012043

Authors: NSSP. Kalyan, Y. Fukumoto, RK. Kandasami

Institutions: Indian Institute of Technology Madras, Nagaoka University of Technology

Language: English

Topic: Numerical methods in engineering

Subfield: Mechanics of Materials

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funder: Japan Society for the Promotion of Science

Award: Particle-based modeling links cracking, fragmentation, and seepage to understand the complex degradation mechanisms of geomaterials