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Frictional vibrations in structural polymers

This study investigated the dry sliding of Acrylonitrile Butadiene Styrene (ABS) in a polymer-on-polymer configuration. The effect of several material and system parameters were investigated to determine their influence on the frictional behavior of the ABS materials. These parameters included: the time dependence of friction under static load, friction-normal load relationships, surface roughness, internal lubrication, friction-velocity relationships, and system stiffness.

Four basic types of frictional behavior were observed - steady sliding, a single stick followed by steady sliding, non-sustained stick-slip oscillations that decayed after several oscillations, and stick-slip oscillations lasting several minutes. Several observations were made regarding the experimental results. It was observed that increasing surface roughness decreases the unstable behavior of the materials. Also, decreasing normal load decreased unstable behavior. A relationship between the friction-velocity curve, stick-slip, and the critical velocity at which stick slip disappeared was observed. Finally, an attempt was made to explain the observed behavior in light of existing theories. / M.S.

Identiferoai:union.ndltd.org:VTETD/oai:vtechworks.lib.vt.edu:10919/112532
Date January 1992
CreatorsMcCann, Brian P.
ContributorsMechanical Engineering
PublisherVirginia Polytechnic Institute and State University
Source SetsVirginia Tech Theses and Dissertation
LanguageEnglish
Detected LanguageEnglish
TypeThesis, Text
Formatxi, 133 leaves, application/pdf, application/pdf
RightsIn Copyright, http://rightsstatements.org/vocab/InC/1.0/
RelationOCLC# 26187360

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