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Proceedings Paper

Damage evaluation and analysis of composite pressure vessels using fiber Bragg gratings to determine structural health
Author(s): Marley Kunzler; Eric Udd; Stephen Kreger; Mont Johnson; Vaughn Henrie
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Paper Abstract

With the augmented use of high performance composite materials in critical structures, it has become increasingly important for 'smart' systems to monitor these materials and provide rapid evaluation. Using fiber Bragg gratings embedded into the weave structure of carbon fiber epoxy composites allow the capability to monitor these composites during manufacture, cure, general aging, and damage. Fiber optic sensors allow greater insight into damage progression and can be used to verify analytical models. This paper emphasizes the results of recent work in which multiple arrays of Bragg gratings were wound into composite vessels and monitored while the part was damaged. Based on the response of these sensors, algorithms were developed to identify the location of damage impacts. Results were verified against eddy current and ultrasonic NDE methods.

Paper Details

Date Published: 16 May 2005
PDF: 9 pages
Proc. SPIE 5758, Smart Structures and Materials 2005: Smart Sensor Technology and Measurement Systems, (16 May 2005);
Show Author Affiliations
Marley Kunzler, Blue Road Research (United States)
Eric Udd, Blue Road Research (United States)
Stephen Kreger, Blue Road Research (United States)
Mont Johnson, ATK Thiokol (United States)
Vaughn Henrie, ATK Thiokol (United States)

Published in SPIE Proceedings Vol. 5758:
Smart Structures and Materials 2005: Smart Sensor Technology and Measurement Systems
Eric Udd; Daniele Inaudi, Editor(s)

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