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Appl. Sci. 2013, 3(1), 39-54; doi:10.3390/app3010039

Field Deployable Fiber Bragg Grating Strain Patch for Long-Term Stable Health Monitoring Applications

BAM Federal Institute for Materials Research and Testing, Unter den Eichen 87, D-12205 Berlin, Germany
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Received: 2 November 2012 / Revised: 7 January 2013 / Accepted: 8 January 2013 / Published: 16 January 2013
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Abstract

A fiber Bragg grating (FBG) strain patch specially adapted for long-term and high-strain applications has been developed and characterized. The design concept for the patch is based on a glass-fiber reinforced plastic (gfrp) carrier material. The developed concept for the FBG integration into the carrier material was derived from reliable integration procedure of FBG sensors into composite structures. The patches’ temperature sensitivity, strain gauge factor, fiber–matrix interface adhesion and fatigue behavior were characterized. As a result, FBG strain patches with linear temperature and strain behavior, as well as excellent fatigue resistance, were developed and can be used as part of a monitoring system for advanced composite materials in aerospace structures or wind turbine power plants. View Full-Text
Keywords: fiber Bragg grating; patch; strain gauge factor; temperature sensitivity; push-out test; validation; fatigue behavior fiber Bragg grating; patch; strain gauge factor; temperature sensitivity; push-out test; validation; fatigue behavior
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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MDPI and ACS Style

Schukar, V.; Kusche, N.; Kalinka, G.; Habel, W. Field Deployable Fiber Bragg Grating Strain Patch for Long-Term Stable Health Monitoring Applications. Appl. Sci. 2013, 3, 39-54.

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