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

Applied Sciences

Vivien Schukar¹  Nadine Kusche²  Gerhard Kalinka² 

[1] BAM Federal Institute for Materials Research and Testing, Unter den Eichen 87, D-12205 Berlin, Germany;

关键词: fiber Bragg grating;    patch;    strain gauge factor;    temperature sensitivity;    push-out test;    validation;    fatigue behavior;   

DOI  :  10.3390/app3010039

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.