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Proceedings Paper

Numerical analysis of a smart composite material mechanical component using an embedded long period grating fiber sensor
Author(s): Dan Savastru; Sorin Miclos; Roxana Savastru; Ion I. Lancranjan
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Paper Abstract

Results obtained by FEM analysis of a smart mechanical part manufactured of reinforced composite materials with embedded long period grating fiber sensors (LPGFS) used for operation monitoring are presented. Fiber smart reinforced composite materials because of their fundamental importance across a broad range of industrial applications, as aerospace industry. The main purpose of the performed numerical analysis consists in final improved design of composite mechanical components providing a feedback useful for further automation of the whole system. The performed numerical analysis is pointing to a correlation of composite material internal mechanical loads applied to LPGFS with the NIR absorption bands peak wavelength shifts. One main idea of the performed numerical analysis relies on the observed fact that a LPGFS embedded inside a composite material undergoes mechanical loads created by the micro scale roughness of the composite fiber network. The effect of this mechanical load consists in bending of the LPGFS. The shifting towards IR and broadening of absorption bands appeared in the LPGFS transmission spectra is modeled according to this observation using the coupled mode approach.

Paper Details

Date Published: 21 May 2015
PDF: 10 pages
Proc. SPIE 9517, Smart Sensors, Actuators, and MEMS VII; and Cyber Physical Systems, 95172A (21 May 2015); doi: 10.1117/12.2188217
Show Author Affiliations
Dan Savastru, National Institute of Research and Development for Optoelectronics (Romania)
Sorin Miclos, National Institute of Research and Development for Optoelectronics (Romania)
Roxana Savastru, National Institute of Research and Development for Optoelectronics (Romania)
Ion I. Lancranjan, National Institute of Research and Development for Optoelectronics (Romania)


Published in SPIE Proceedings Vol. 9517:
Smart Sensors, Actuators, and MEMS VII; and Cyber Physical Systems
José Luis Sánchez-Rojas; Riccardo Brama, Editor(s)

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