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Designing for Lamb Wave Based In Situ Structural Health Monitoring

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Abstract:

The incorporation of in situ structural health monitoring is currently an after-thought used to address critical areas identified in testing or service. This paper reports on a series of analytical/experimental work seeking to demonstrate the implementation of in situ structural health monitoring (iSHM) at the design stage of critical structures. This work is intended for the design of future generation aircraft. The work presented describes a systematic redesign scheme based on Lamb wave technology. The results demonstrate a strong possibility that such a system is effective and feasible and comes at a tolerable cost to the structure. To demonstrate the efficacy of this proposed design scheme, a series of experimental results will be presented using the fatigue critical location of structure representing the lower wing skin of an aircraft structure as a test case.

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Structural Health Monitoring: Research and Applications View Preview

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Periodical:

Key Engineering Materials (Volume 558)

Pages:

411-423

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.558.411

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Online since:

June 2013

Authors:

W.H. Ong, Wing Kong Chiu

Keywords:

Fatigue Crack, In Situ Structural Health Monitoring, Lamb Wave, Non-Destructive, Piezoceramic, Structural Design, Weep Hole

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© 2013 Trans Tech Publications Ltd. All Rights Reserved

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