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Proceedings Paper

Verification of a three-dimensional FEM model for FBGs in PANDA fibers by transversal load experiments
Author(s): Bennet Fischer; Barbara Hopf; Markus Lindner; Alexander W. Koch; Johannes Roths
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Paper Abstract

A 3D FEM model of an FBG in a PANDA fiber with an extended fiber length of 25.4 mm is presented. Simulating long fiber lengths with limited computer power is achieved by using an iterative solver and by optimizing the FEM mesh. For verification purposes, the model is adapted to a configuration with transversal loads on the fiber. The 3D FEM model results correspond with experimental data and with the results of an additional 2D FEM plain strain model. In further studies, this 3D model shall be applied to more sophisticated situations, for example to study the temperature dependence of surface-glued or embedded FBGs in PANDA fibers that are used for strain-temperature decoupling.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103232B (23 April 2017); doi: 10.1117/12.2263262
Show Author Affiliations
Bennet Fischer, Hochschule für Angewandte Wissenschaften München (Germany)
Barbara Hopf, Hochschule für Angewandte Wissenschaften München (Germany)
Markus Lindner, Hochschule für Angewandte Wissenschaften München (Germany)
Alexander W. Koch, Technische Univ. München (Germany)
Johannes Roths, Hochschule für Angewandte Wissenschaften München (Germany)


Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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