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International Journal of Rotating Machinery
Volume 10 (2004), Issue 1, Pages 27-31
http://dx.doi.org/10.1155/S1023621X0400003X

Predictive Failure of Cylindrical Coatings Using Weibull Analysis

1Georgia Southern University, Statesboro, Georgia, USA
2National Aeronautics and Space Administration, Glenn Research Center, Cleveland, Ohio, USA
3MS 5/9, NASA Glenn Research Center, 21000 Brookpark Road, Cleveland 44135, OH, USA

Copyright © 2004 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Rotating, coated wiping rollers used in a high-speed printing application failed primarily from fatigue. Two coating materials were evaluated: a hard, cross-linked, plasticized polyvinyl chloride (PVC) and a softer, plasticized PVC. A total of 447 tests was conducted with these coatings in a production facility. The data were evaluated using Weibull analysis. The softer coating produced more than twice the life of the harder cross-linked coating and reduced the wiper replacement rate by two-thirds, resulting in minimum production interruption.