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Application of piezoelectric MFC sensors and fiber Bragg grating sensors in structural health monitoring of composite materials
Author(s): Mohammad Azarbayejani; Caleb Matheson; Lucas Ridgeway
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Paper Abstract

Advanced composite materials have been integrated extensively into aircraft structures and have been emerged in civil infrastructure (e.g. bridges), in recent years. Composite materials are prone to initiation of hidden damage which makes it vital to detect damage at its onset. In this paper, first we introduce a procedure to fabricate structural carbon fiber reinforced polymer (CFRP) sheets at the university laboratory. Then, two structural health monitoring (SHM) systems will be developed to assess and monitor the performance of CFRP materials. The first SHM system is based on installing piezoelectric MFC sensors on CFRP sheets. These sensors are using guided lamb waves to detect possible damage in composites at its onset. The second SHM system will be developed using Fiber Bragg Grating (FBG) technology. This system will acquire signals from a fiber optic thermocouple and a fiber optic strain gauge. The damage will be introduced into CFRP sheets with an impact hammer. The damage detection will be performed by the two SHM systems for different damage severities. The pros and cons of each SHM system in composite damage detection will be investigated and the recommendations will be made for utilizing each system in real world composite applications.

Paper Details

Date Published: 27 March 2019
PDF: 9 pages
Proc. SPIE 10970, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019, 1097029 (27 March 2019); doi: 10.1117/12.2514309
Show Author Affiliations
Mohammad Azarbayejani, New Mexico Institute of Mining and Technology (United States)
Caleb Matheson, New Mexico Institute of Mining and Technology (United States)
Lucas Ridgeway, New Mexico Institute of Mining and Technology (United States)


Published in SPIE Proceedings Vol. 10970:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2019
Jerome P. Lynch; Haiying Huang; Hoon Sohn; Kon-Well Wang, Editor(s)

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