Finite Element Analysis of the Contact Forces between Viscoelastic Particles

被引：0
|
作者：
Zheng, Q. J. [1 ]
Zhu, H. P. [2 ]
Yu, A. B. [1 ]
机构：
[1] Univ New S Wales, Sch Mat Sci & Engn, Lab Simulat & Modeling Particulate Syst, Sydney, NSW 2052, Australia
[2] Univ Western Sydney, Sch Engn, Penrith, NSW 1797, Australia
来源：
POWDERS AND GRAINS 2013 | 2013年 / 1542卷
基金：
澳大利亚研究理事会;
关键词：
Contact mechanics; finite element method; viscoelastic particles; discrete element method; granular dynamics simulation; ROLLING FRICTION; COEFFICIENT; RESTITUTION; COLLISIONS; SPHERES; STRESS; PLANE; MODEL;
D O I：
10.1063/1.4812064
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The normal and tangential force-displacement (NFD and TFD) relations as well as the rolling friction between viscoelastic particles are investigated by means of finite element method (FEM). A new set of semi-theoretical models are proposed for the NFD, TFD and rolling friction based on the contact mechanics and the FEM results. Compared with previous empirical models (e. g. Linear-Spring-Dashpot model), the new models have an advantage that all parameters can be directly determined from the material properties. Therefore they can eliminate the uncertainty in parameter selection and should be more effective in discrete element method (DEM) simulations of viscoelastic granular materials.
引用
收藏
页码：847 / 850
页数：4
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