Multiplexed FBG and etched fiber sensors for process and health monitoring of 2-&3-D RTM components

Warning The system is temporarily closed to updates for reporting purpose.

Keulen, Casey J. and Yıldız, Mehmet and Suleman, Afzal (2011) Multiplexed FBG and etched fiber sensors for process and health monitoring of 2-&3-D RTM components. Journal of Reinforced Plastics and Composites, 30 (12). pp. 1055-1064. ISSN 0731-6844

[thumbnail of A12-Multiplexed_FBG_and_etched_fiber.pdf] PDF
A12-Multiplexed_FBG_and_etched_fiber.pdf
Restricted to Registered users only

Download (654kB) | Request a copy

Abstract

This paper presents research being conducted on the use of a combination of fiber optic sensors for process and health monitoring of resin transfer molded (RTM) composite structures. A laboratory scale RTM apparatus has been designed and built with the capability of visually monitoring the resin filling process and embedding fiber optic sensors into the composite. Fiber Bragg gratings (FBG) and etched fiber sensors (EFS) have been multiplexed and embedded in quasi-2-D panels and 3-D hollow semicircular structures using a novel ingress/egress technique for the purpose of both process and structural health monitoring. The objective of this work is to demonstrate the simultaneous usage of FBGs and etched fiber sensors on a single optical fiber for resin flow monitoring and strain monitoring throughout the life of the composite. Three specimens are presented: one quasi-2D panel with two FBGs and three etched fiber sensors, one semicircular tube with two etched fiber sensors and one semicircular tube with two FBGs. Etched fiber sensors have been correlated with visual inspection to detect the presence of resin. Specimens with embedded FBG sensors have been tested in a tensile test machine to characterize the FBGs for strain monitoring.
Item Type: Article
Uncontrolled Keywords: process monitoring; structural health monitoring; FBG; RTM; fiber optic sensors; smart materials; mechanical testing
Divisions: Faculty of Engineering and Natural Sciences > Academic programs > Materials Science & Eng.
Faculty of Engineering and Natural Sciences
Depositing User: Mehmet Yıldız
Date Deposited: 04 Jan 2012 10:20
Last Modified: 28 Apr 2020 14:07
URI: https://research.sabanciuniv.edu/id/eprint/17901

Actions (login required)

View Item
View Item