Open Access

ARTICLE

The stone powder wall shaping mechanism on machine-made sand

L. Yu^1,2,3, P. Sun^1,2,3, S. Han^1,2,3, Y. Song^1,2,3, H. Wu^1,2,3, X. Tong^1,2,3, P. Peng^1,2,3

1 Key Laboratory of Intelligent Processing Technology and Equipment of Fujian Province, Fuzhou, Fujijan 350118 China
2 Numerical Control Equipment Industry Technology Innovation Institute of Fujian Province, Fuzhou, Fujijan 350118 China
3 School of Mechanical and Automotive Engineering, Fujian University of Technology, Fuzhou, Fujijan 350118 China

* Corresponding Author: L. Yu ()

Revista Internacional de Métodos Numéricos para Cálculo y Diseño en Ingeniería 2023, 39(3), 1-14. https://doi.org/10.23967/j.rimni.2023.09.005

Accepted 06 September 2023; Issue published 18 September 2023

Abstract

At present, the researches on the mechanical properties of sand aggregate mainly focus on the shaping process of particles, and lack the researches on the crushing mechanism. This paper first defines the shaping process of stone powder wall, and explores the crushing mechanism of sand aggregate by adopting multiple times of small energy crushing. The effect of energy is investigated by simulation and experiment. The machine-made sand crushing mechanism is analyzed by establishing corresponding contact mathematical models. The result shows that the stone powder wall involves two mathematical models under impact: the elastic-plastic model at low impact velocity and the elastic-brittle model at high impact velocity.

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Keywords

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