Discrete element simulation and experiment for dynamic response of two-dimensional granular matter to the impact of a spherical projectile

被引：54

作者：

Tanaka, K ^{[1
]}

Nishida, M ^{[1
]}

Kunimochi, T ^{[1
]}

Takagi, T ^{[1
]}

机构：

[1] Nagoya Inst Technol, Dept Mech Engn, Showa Ku, Nagoya, Aichi 4668555, Japan

来源：

POWDER TECHNOLOGY | 2002年 / 124卷 / 1-2期

关键词：

granular matter; impact experiment; discrete element method; contact force;

D O I：

10.1016/S0032-5910(01)00489-2

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The dynamic response of two-dimensional granular matter subjected to the impact of a spherical projectile is investigated experimentally and also numerically using discrete element method (DEM). The granular matter is modeled by the mono-disperse aggregation of nylon spheres arranged regularly and two-dimensionally in a rectangular container. The numerical simulations are compared with the experiments using high-speed video camera for the impact velocity of about 10 m/s. It is shown that the motion of each particle can be well simulated by discrete element method. Also. the dynamic response of the particulate aggregation is elucidated in detail by inspecting the distribution of velocity vectors of individual particles and contact forces between particles, and very distinctive behaviors are found. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：160 / 173

页数：14

共 43 条

[1] Coefficient of friction of binary granular mixtures in contact with a smooth wall.: Part B.: Micro-structural model describing the effects of packing fraction and load distribution on the wall friction of smooth, elastic spheres [J].