Journal
TRIBOLOGY LETTERS
Volume 59, Issue 1, Pages -Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11249-015-0527-0
Keywords
Elastic averaging; Repositioning; Measurement
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In many cases, it is impractical or prohibitively expensive to develop new instrumentation to study tribo-logical phenomena in situ, but with the application of elastic averaging, to accurately locate two surfaces with respect to one another, this can be realized with existing peripheral diagnostic equipment. A sample fixture was designed using the principles of elastic averaging that allows for the separation and repeatable repositioning of a tribological test specimen. Using an optical interferometer and digital image correlation, the fixture was determined to have average repositioning errors of <2 mu m, in both the x and y directions. The application of these simple design principles could provide an accurate, repeatable, and low-cost solution for interrupted tribological studies.
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