Effect of Dissimilar Material Layers on Collision Process Between Projectile and Two-Dimensional Ordered Particle Packing

被引：0

作者：

Nishida, Masahiro ^{[1
]}

Tanaka, Koichi ^{[1
]}

机构：

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

来源：

POWDERS AND GRAINS 2009 | 2009年 / 1145卷

关键词：

Projectile impact; Wave propagation; Contact force; DISCRETE ELEMENT METHOD; SPHERICAL PROJECTILE; SIMULATION;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The dynamic response of a two-dimensional ordered particle packing subjected to the impact of a spherical projectile was investigated experimentally as well as numerically by the discrete element method (DEM). The main component of this particle packing is mono-size nylon spheres of 6.36 mm diameter (1/4 inch diameter), arranged uniformly, vertically and two-dimensionally in 9 layers of 37 (or 36) spheres each, in a rectangular container. A dissimilar material layer, that is, a layer of spheres of 6.36 mm diameter made of alumina ceramics and steel, is placed in the particle packing. The effects of the dissimilar material layers were examined. The motion of the steel projectile and particle packing was recorded by a high-speed video camera. The experimental results obtained using force sensors at the base plate showed that the dissimilar material layers reduced the contact forces at the base plate.

引用

页码：775 / 778

页数：4

共 13 条

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