Effect of Particle Fragmentation on the Stress Evolution in the Beam Impacted by a Particle Using Hybrid Method

Abstract

In this research, collision of a glass bead particle onto a ceramic beam is analyzed by the hybrid method that combines discrete element method (DEM) and finite element method (FEM), developed by the authors. Contact forces between the particle and the beam are analyzed by the Penalty method and Christensen failure criterion is used for dealing with the initiation and propagation of cracks in the glass bead particle. Numerical analysis is executed to examine the initiation and propagation of cracks and fragmentation appearance in the particle, behaviors of stresses of elements at the contact center of the particle and the beam, and stress evolution beneath the surface of the beam by particle impact and its fragmentation.