A novel dynamic friction experiment using a modified Kolsky bar apparatus

被引：47

作者：

Espinosa, HD ^{[1
]}

Patanella, A ^{[1
]}

Fischer, M ^{[1
]}

机构：

[1] Purdue Univ, Sch Aeronaut & Astronaut, W Lafayette, IN 47907 USA

来源：

EXPERIMENTAL MECHANICS | 2000年 / 40卷 / 02期

基金：

美国国家科学基金会;

关键词：

Kolsky bar; dynamic friction; manufacturing; wear;

D O I：

10.1007/BF02325039

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel dynamic friction experiment using the Kolsky bar concept was developed. The technique is complementary to the plate impact and other macroscopic friction experiments in the sense that sliding velocities and pressures not attainable otherwise can be investigated. The experimental results reported in this article show that the technique provides accurate and repeatable measurement of time-resolved friction. The apparatus is simpler and easier to operate than the plate impact facility. However, it cannot achieve the same level of contact pressure. Several material pairs have been investigated. In particular, the kinetic friction coefficient of Ti6Al-4V sliding against WC/Co (cerment) and 4340 steel sliding against WC/Co were measured and compared with the values reported by Prakash and Clifton in 1993. Atomic force microscopy is used to characterize the surface topography before and after the friction tests.

引用

页码：138 / 153

页数：16

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