Coefficients of restitution for elastoplastic oblique impacts

被引：74

作者：

Wu, CY

Thornton, C ^{[1
]}

Li, LY

机构：

[1] Univ Birmingham, Sch Engn, Birmingham B15 2TT, W Midlands, England

[2] Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England

[3] Aston Univ, Sch Engn & Appl Sci, Birmingham B4 7ET, W Midlands, England

来源：

ADVANCED POWDER TECHNOLOGY | 2003年 / 14卷 / 04期

关键词：

particle impact; finite element analysis; elastic; elastoplastic; restitution coefficients;

D O I：

10.1163/156855203769710663

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The paper presents results of a finite element analysis of both elastic and elastoplastic oblique impacts of a sphere with a target wall using the DYNA3D code. For elastic oblique impacts, the results are in complete agreement with previous publications. For elastoplastic oblique impacts, the rebound kinematics depend on the normal coefficient of restitution, which is conventionally assumed to be a function of the normal impact velocity irrespective of the impact angle. The results of the finite element simulations of elastoplastic impacts demonstrate that this is not the case.

引用

页码：435 / 448

页数：14

共 14 条

[1]

[Anonymous], 1993, DYNA3D NONLINEAR EXP

[2] IMPACT DYNAMICS WITH APPLICATIONS TO SOLID PARTICLE EROSION. [J].