Modeling and experimental strain measurements on a nonhomogeneous cylinder under transverse load

John A. Viator; Stephen T. Kreger; Michele W. Winz; Eric Udd

doi:10.1117/12.541589

27 July 2004 Modeling and experimental strain measurements on a nonhomogeneous cylinder under transverse load

John A. Viator, Stephen T. Kreger, Michele W. Winz, Eric Udd

Proceedings Volume 5384, Smart Structures and Materials 2004: Smart Sensor Technology and Measurement Systems; (2004) https://doi.org/10.1117/12.541589
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

Abstract

Optical fiber sensors have the capability of sensing environmental factors, including strain and temperature. In particular, optical fiber Bragg gratings have been used to create multi-parameter sensors capable of measuring axial and transverse strain in addition to temperature. These measurements are made by writing gratings into the optical fibers at two separated wavelengths, 1300 and 1550 nm, and monitoring the polarization sensitive output from the sensor. While there is an analytical model for determining the strain on a homogeneous cylinder under transverse load, these fiber optic sensors are not homogeneous as they consist of distinct regions within the fiber: core, cladding, and stress rods. We measure the strain on a multi-parameter fiber Bragg grating written at 1550nm under transverse load at 0, 15, 30, 45, 60, 75, and 90° and compare these values with an analytical solution accounting for internal stresses and transverse load.

Citation Download Citation

John A. Viator, Stephen T. Kreger, Michele W. Winz, and Eric Udd "Modeling and experimental strain measurements on a nonhomogeneous cylinder under transverse load", Proc. SPIE 5384, Smart Structures and Materials 2004: Smart Sensor Technology and Measurement Systems, (27 July 2004); https://doi.org/10.1117/12.541589

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