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Piezoresistive effect of plain-weave CFRP fabric subjected to cyclic loading

Authors :
Akira Todoroki
Yusuke Nishio
Yoshihiro Mizutani
Yoshiro Suzuki
Source :
Advanced Composite Materials. 26:229-243
Publication Year :
2016
Publisher :
Informa UK Limited, 2016.

Abstract

The present study deals with electrical resistance changes in woven-fabric CFRP during loading. Four kinds of plain weave woven-fabric CFRP laminated specimens are prepared and subjected to cyclic tensile loading that does not cause any damages, and the electrical resistance changes of the specimens are measured experimentally by the four-probe method. As a result, the present study shows that the electrical resistance of a specimen comprised of six ±45° plies decreases remarkably with increasing number of loading cycles. The decrease is caused by shear plastic deformation of ±45° plies. The thickness shrinkage caused by shear plastic deformation increases the number of fiber contacts, and this decreases the interlaminar contact resistance between the plies. For a single ±45° ply, the same electrical resistance decrease caused by the shear plastic deformation is observed, and the magnitude of the decrease is smaller than that of the six-ply laminate tested. This is because the effect of interlaminar conta...

Details

ISSN :
15685519 and 09243046
Volume :
26
Database :
OpenAIRE
Journal :
Advanced Composite Materials
Accession number :
edsair.doi.dedup.....a30607b5842b15cecc1a46d7ff6f31d0
Full Text :
https://doi.org/10.1080/09243046.2016.1239354