Paper Title:
Research on the Abrasion Resistance of Acetabulum Thickness Effects
  Abstract

The wear-resisting function of the 4-10mm thickness Ultra high molecular weight polyethylene artificially acetabulum was researched, which matches up with the 28mm-diameter artificial thigh bone. The Elastic deformation theory and the finite-element analysis to get the regularity of distribution on contract stress were compared, calculate the stress integral to friction journey during the normal gait, and according with the Archard wear calculation formula, compare the reckoning of artificially acetabulum in different thickness. By this calculation, the regularity of distribution for contact stress, which got from elastic deformation theory, is close to the result got from finite-element analysis. For a 65 kg sufferer matched with a 28mm-diameter artificial thigh bone, the wear-resisting of a 6-8mm artificially acetabulum is better, when the inner spherical radius is a little bigger than artificially acetabulum. Also, except the high –usage of stuff, it can prove the best balance performance and provide theoretical foundation to the optimum design of artificial acetabulum.

  Info
Periodical
Advanced Materials Research (Volumes 361-363)
Chapter
Chapter 11: Environmental Protection and Economic Development
Edited by
Qunjie Xu, Honghua Ge and Junxi Zhang
Pages
1567-1570
DOI
10.4028/www.scientific.net/AMR.361-363.1567
Citation
B. Q. Zhu, W. J. Zhai, "Research on the Abrasion Resistance of Acetabulum Thickness Effects", Advanced Materials Research, Vols. 361-363, pp. 1567-1570, 2012
Online since
October 2011
Export
Price
$32.00
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