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Optical Engineering

Embedded Fabry-Perot fiber optic strain sensors in the macromodel composites
Author(s): John J. Lesko; Gregory Paul Carman; Brian R. Fogg; William V. Miller; Ashish M. Vengsarkar; Kenneth L. Reifsnider; Richard O. Claus
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Paper Abstract

We introduce the use of fiber optic strain sensors embedded within a macromodel composite employed to study and validate micromechanical theories. Fabry-Perot (FP) fiber optic strain sensors (FOSSs) embedded within a macromodel composite are shown to be an accurate and precise means of making local internal strain measurements in and around damage events. The measurements made by the sensors compare closely to those obtained from resistance strain gauge data verified through presently accepted micromechanics. The optical strain sensors effectively measure both the signature of fiber fracture and the resulting strain concentration due to the damage event. The sensors add a new dimension to the validation and development of micromechanics. The approach assists in the formulation of new concepts for interpretation and prediction of actuator/sensor response in smart materials.

Paper Details

Date Published: 1 January 1992
PDF: 10 pages
Opt. Eng. 31(1) doi: 10.1117/12.56055
Published in: Optical Engineering Volume 31, Issue 1
Show Author Affiliations
John J. Lesko, Virginia Polytechnic Institute and State Univ. (United States)
Gregory Paul Carman, Virginia Polytechnic Institute and State Univ. (United States)
Brian R. Fogg
William V. Miller, Virginia Polytechnic Institute and State Univ. (United States)
Ashish M. Vengsarkar, AT&T Bell Labs. (United States)
Kenneth L. Reifsnider, Virginia Polytechnic Institute and State Univ. (United States)
Richard O. Claus, Virginia Polytechnic Institute and State Univ. (United States)


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