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Feasibility of using digital speckle correlation in the study of seal contacts
Author(s) -
Gren Per,
Kassfeldt Elisabet
Publication year - 2009
Publication title -
lubrication science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.632
H-Index - 36
eISSN - 1557-6833
pISSN - 0954-0075
DOI - 10.1002/ls.77
Subject(s) - speckle pattern , seal (emblem) , materials science , digital image correlation , surface finish , surface roughness , optics , digital image , composite material , computer science , image processing , physics , computer vision , image (mathematics) , art , visual arts
This paper presents studies of the contact between a soft rubber specimen and glass counterface using the Digital Speckle Correlation method, which provides information of displacements and structural similarities between recorded images. The setup is designed with a real contact and changes in the contact can be varied. Microscopic images using laser light illumination for different displacements are recorded and correlated. The results show that the contact area can be identified both for dry and lubricated contacts. The method can be applied on different geometries, surface roughness and lubricants. Influences of scars and contaminations, e.g. wear particles, may also be analysed. Copyright © 2009 John Wiley & Sons, Ltd.