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Residual stress development in a bi‐layer coating
Author(s) -
Yan Gu,
White J. R.
Publication year - 1999
Publication title -
polymer engineering and science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.503
H-Index - 111
eISSN - 1548-2634
pISSN - 0032-3888
DOI - 10.1002/pen.11579
Subject(s) - thermosetting polymer , materials science , composite material , coating , thermoplastic , residual stress , substrate (aquarium) , layer (electronics) , bending , stress (linguistics) , linguistics , oceanography , philosophy , geology
Measurements have been made of the residual stress development in a solventdeposited thermoplastic coating and a two‐component thermoset by monitoring the bending of the steel substrate using strain gauges. The stresses in single layers were found to be significant when compared to the strength of the coatings. When the thermoset was applied on top of the thermoplastic (undercoat), the stress in the top coat was much less than that obtained when the thermoset was applied directly to the steel substrate. This was deduced using a new elastic analysis for tri‐layers (substrate plus bi‐layered coating).