Measurements of pressure and area dependent tangential contact stiffness between rough surfaces using digital image correlation
Measurements of pressure and area dependent tangential contact stiffness between rough surfaces using digital image correlation
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DOI：
10.1016/j.triboint.2011.05.025
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发表时间：
2011-09-01
影响因子：
6.2
通讯作者：
Hills, D. A.
中科院分区：
文献类型：
--
作者：
Kartal, M. E.;Mulvihill, D. M.;Hills, D. A.
本文介绍了一种实验技术，以准确地测量两个粗糙的接触表面之间的切向接触刚度制造的钛合金Ti-6Al-4V。采用数字图像相关法测量局部位移场。研究了法向接触压力、名义接触面积和微动磨损对切向接触刚度的影响。实验表明，切向接触刚度与名义接触面积和法向压力的0.64次方近似成正比。考虑到涉及的变量数量，具有相同参数的多个实验显示出良好的可重复性。(C)2011爱思唯尔有限公司保留所有权利。
The present paper describes an experimental technique to accurately measure the tangential contact stiffness between two rough contacting surfaces manufactured from the titanium alloy Ti-6Al-4V. The digital image correlation method is employed to measure the local displacement field. The effect of normal contact pressure, nominal contact area and fretting wear on tangential contact stiffness is investigated. The experiments indicate that the tangential contact stiffness is approximately proportional to the nominal contact area and the normal pressure raised to the power of 0.64. Multiple experiments with the same parameters show good repeatability given the number of variables involved. (C) 2011 Elsevier Ltd. All rights reserved.