Damage detection in composite materials using optical fibers: recent advances in signal processing

Wieslaw J. Staszewski; Ian J. Read; Peter D. Foote

doi:10.1117/12.388829

22 June 2000 Damage detection in composite materials using optical fibers: recent advances in signal processing

Wieslaw J. Staszewski, Ian J. Read, Peter D. Foote

Proceedings Volume 3985, Smart Structures and Materials 2000: Smart Structures and Integrated Systems; (2000) https://doi.org/10.1117/12.388829
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

Abstract

This paper is concerned with the passive impact detection system based on fiber Bragg grating sensors which can be either embedded or surface mounted on a composite structure. The focus of the paper is the methodology of the intelligent signal processing for the optical fiber sensor data. This methodology is briefly discussed and illustrated using simple examples which utilize the experimental data. The experimental study involves a series of simple impact tests. The composite panel is installed in a loading fame. An instrumented impactor is used to damage the panel at different positions with different energy levels. For each impact the data from optical fiber sensors is digitized, logged and used for signal processing. The paper shows the importance of the intelligent signal processing for impact damage detection based on optical fiber sensors.

Citation Download Citation

Wieslaw J. Staszewski, Ian J. Read, and Peter D. Foote "Damage detection in composite materials using optical fibers: recent advances in signal processing", Proc. SPIE 3985, Smart Structures and Materials 2000: Smart Structures and Integrated Systems, (22 June 2000); https://doi.org/10.1117/12.388829

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