Loading…

Performance evaluation of smart grid fabrics comprising carbon dry fabrics and PVDF ribbon sensors for structural health monitoring

The aim of this study is to evaluate the performance of smart grid fabrics (SGF) comprising carbon dry fabric and a number of polyvinylidene fluoride ribbons with piezoelectric characteristics. Smart grid fabrics embedding composite structures can perform real-time structural integrity diagnoses und...

Full description

Saved in:
Bibliographic Details
Published in:Composites. Part B, Engineering Engineering, 2019-04, Vol.163, p.690-701
Main Authors: Jung, Kyung-Chae, Chang, Seung-Hwan
Format: Article
Language:English
Subjects:
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The aim of this study is to evaluate the performance of smart grid fabrics (SGF) comprising carbon dry fabric and a number of polyvinylidene fluoride ribbons with piezoelectric characteristics. Smart grid fabrics embedding composite structures can perform real-time structural integrity diagnoses under service conditions. Sensitivity checks of SGF sensors embedded in carbon/epoxy composite laminates under a drop-weight impact loading were performed. Finally, frequency analysis techniques, such as short-time Fourier transform and discrete wavelet transform, were used to correlate the frequency components of the output signals with the corresponding material failure modes of the composite laminate. Based on the results from a series of experimental tests, the feasibility of constructing smart composite structures using SGFs was verified.
ISSN:1359-8368
1879-1069
DOI:10.1016/j.compositesb.2019.01.050