Open AccessPacking Structure of Binary Particle Compacts with Fibers
Author(s) -
Aidana Boribayeva,
Assem Zharbossyn,
Zhazira Berkinova,
Assiya Yermukhambetova,
Boris Golman
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/829/1/012020
Subject(s) - microstructure , materials science , composite material , atomic packing factor , ternary operation , sphere packing , particle (ecology) , discrete element method , particle size , particle size distribution , crystallography , chemical engineering , mechanics , physics , chemistry , oceanography , computer science , engineering , programming language , geology
Fibers have been used to improve the mechanical properties of the asphalt paving mixture. It is known that the enhancement of powder compact mechanical properties is related to the compact packing microstructure. This study focuses on the evaluation of the packing microstructure of powder compacts produced from ternary mixtures of spherical particles and fibers. The discrete element method is employed to generate the compacts of particle mixtures of different compositions under gravity. The compact microstructure is quantitatively characterized by utilizing the developed image analysis technique to approximate the size distribution of voids among particles in X, Y and Z directions. As a result, the denser packing was obtained with a greater fraction of small spherical particles. The inclusion of fibers resulted in the high-density compact with uniform distribution of small size voids.