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A Mechanistic Approach to Predicting the Friction Behaviour of Human Skin

[+] Author Affiliations
Julien van Kuilenburg

Materials Innovation Institute, Delft, The NetherlandsUniversity of Twente, Enschede, The Netherlands

Marc A. Masen

University of Twente, Enschede, The Netherlands

Emile van der Heide

University of Twente, Enschede, The NetherlandsTNO, Eindhoven, The Netherlands

Paper No. IJTC2012-61164, pp. 45-47; 3 pages
doi:10.1115/IJTC2012-61164
From:
  • ASME/STLE 2012 International Joint Tribology Conference
  • ASME/STLE 2012 International Joint Tribology Conference
  • Denver, Colorado, USA, October 7–10, 2012
  • Conference Sponsors: Tribology Division
  • ISBN: 978-0-7918-4508-0
  • Copyright © 2012 by ASME

abstract

In this work, analytical models available from contact mechanics theory having a proven record in mechanical engineering were used to develop a model predicting the friction behavior of human skin.

A multi-scale contact model was developed in which the contact parameters are calculated at three levels, each level characterized by its elastic behavior and geometry. For a product part in contact with the so-called hairy skin the skin topography can be described as being composed of spherical contacts, whereas for the finger in contact with a product surface the fingerprint ridges are modeled as annulus shaped line contacts.

Sliding friction was measured in vivo between the skin and different surface textures produced using ultra-short pulsed laser technology. The results observed during in vivo experiments are very well explained by the developed model, which predicts the friction as a function of product geometry, asperity geometry and normal load.

Copyright © 2012 by ASME
Topics: Friction , Skin

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