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Proceedings Paper

An optical-fiber fatigue crack detection and monitoring system
Author(s): K. F. Hale
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Paper Abstract

An assessment has been made of the reliability of an optical-fibre crack- monitoring system for detecting the initiation and growth of fatigue cracks inaluminium alloys. The sensors are capable of detecting crack-width increases in therange 5 to 30 lam, in aluminium alloys subjected to cyclic loading, with a high degreeof confidence. The performance of the sensors is unchanged by large cyclic loadingcycles up to about 100 microstrain, over the temperature range -196° to +120°C, up to100% relative humidity conditions or immersed in normal or sea water.

Paper Details

Date Published: 1 May 1992
PDF: 4 pages
Proc. SPIE 1777, First European Conference on Smart Structures and Materials, 17770U (1 May 1992); doi: 10.1117/12.2298053
Show Author Affiliations
K. F. Hale, Brunel Univ. (United Kingdom)

Published in SPIE Proceedings Vol. 1777:
First European Conference on Smart Structures and Materials
Brian Culshaw; Peter T. Gardiner; Alaster McDonach, Editor(s)

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