TY - GEN
T1 - Poling of PVDF matrix composites for integrated structural load sensing
AU - Haghiashtiani, Ghazaleh
AU - Greminger, Michael A.
AU - Zhao, Ping
PY - 2014
Y1 - 2014
N2 - The purpose of this study is to create and evaluate a smart composite structure that can be used for integrated load sensing and structural health monitoring. In this structure, PVDF films are used as the matrix material instead of epoxy resin or other thermoplastics. The reinforcements are two layers of carbon fiber with one layer of Kevlar separating them. Due to the electrical conductivity properties of carbon fiber and the dielectric effect of Kevlar, the structure acts as a capacitor. Furthermore, the piezoelectric properties of the PVDF matrix can be used to monitor the response of the structure under applied loads. In order to exploit the piezoelectric properties of PVDF, the PVDF material must be polarized to align the dipole moments of its crystalline structure. The optimal condition for poling the structure was found by performing a 23 factorial design of experiment (DoE). The factors that were studied in DoE were temperature, voltage, and duration of poling. Finally, the response of the poled structure was monitored by exposing the samples to an applied load.
AB - The purpose of this study is to create and evaluate a smart composite structure that can be used for integrated load sensing and structural health monitoring. In this structure, PVDF films are used as the matrix material instead of epoxy resin or other thermoplastics. The reinforcements are two layers of carbon fiber with one layer of Kevlar separating them. Due to the electrical conductivity properties of carbon fiber and the dielectric effect of Kevlar, the structure acts as a capacitor. Furthermore, the piezoelectric properties of the PVDF matrix can be used to monitor the response of the structure under applied loads. In order to exploit the piezoelectric properties of PVDF, the PVDF material must be polarized to align the dipole moments of its crystalline structure. The optimal condition for poling the structure was found by performing a 23 factorial design of experiment (DoE). The factors that were studied in DoE were temperature, voltage, and duration of poling. Finally, the response of the poled structure was monitored by exposing the samples to an applied load.
KW - Carbon fiber reinforced composites
KW - PVDF films
KW - Piezoelectricity
KW - Smart composite structures
KW - Structural health monitoring
UR - http://www.scopus.com/inward/record.url?scp=84902187551&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84902187551&partnerID=8YFLogxK
U2 - 10.1117/12.2044494
DO - 10.1117/12.2044494
M3 - Conference contribution
AN - SCOPUS:84902187551
SN - 9780819499875
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014
PB - SPIE
T2 - Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2014
Y2 - 10 March 2014 through 13 March 2014
ER -