Triaxial tests and DEM simulation on artificial bonded granular materials

抄録

This paper presents a study on a bonded granular material based on consolidated drained triaxial tests and Distinct Element Method (DEM) analysis. Steel balls of 5 mm in diameter and a metal bonding, i.e. Scotch-weld MC 100, were used to simulate granular material and the bonding between particles. Triaxial consolidation drained tests were conducted on the artificial bonded granular material. The effect of bonding on the mechanical properties is analyzed. The triaxial tests were reproduced with Particle Flow Code (PFC). Comparison of the experimental and numerical results was made. It is indicated that the intergranular cementation has a significant effect on the mechanical properties such as strength, deformation and the bonded granular material exhibits strain softening behavior.