Cookies

We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.


Durham Research Online
You are in:

Is the wear factor in total joint replacements dependent on the nominal contact stress in ultra-high molecular weight polyethylene contacts ?

Vassiliou, K. and Unsworth, A. (2004) 'Is the wear factor in total joint replacements dependent on the nominal contact stress in ultra-high molecular weight polyethylene contacts ?', Proceedings of the I MECH E part H : journal of engineering in medicine., 218 (2). pp. 101-107.

Abstract

The exact dependence of wear factor on contact stress, load and apparent contact area is much disputed in the literature. This study attempts to solve this dispute. Pin-on-plate studies of ultra high molecular weight polyethylene against stainless steel were conducted under different combinations of load (33-250 N), nominal stress (0.56-12.73 MPa) and face diameter, as well as two tests where both stress and load were kept constant, while the diameter was changed. For these tests the centre of the pin face was bored out to create four different average pin diameters with similar face areas. Diameter and load were found to have no significant effect on the wear factor, while the wear factor decreased with increasing contact stress according to the relation K = 2 x 10-6σ-0.84.

Item Type:Article
Keywords:Ultra high molecular weight polyethylene wear, Load, Pin-on-plate set-up.
Full text:PDF - Published Version (453Kb)
Status:Peer-reviewed
Publisher Web site:http://dx.doi.org/10.1243/095441104322983997
Publisher statement:© Vassiliou, K. and Unsworth, A., 2004. The definitive, peer reviewed and edited version of this article is published in Proceedings of the I MECH E part H : journal of engineering in medicine, 218, 2, pp. 101-107, 10.1243/095441104322983997
Record Created:23 Apr 2008
Last Modified:24 May 2011 16:49

Social bookmarking: del.icio.usConnoteaBibSonomyCiteULikeFacebookTwitterExport: EndNote, Zotero | BibTex
Usage statisticsLook up in GoogleScholar | Find in a UK Library