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Proceedings Paper

Crack detection on a full-scale aircraft fatigue test
Author(s): Ian R. Searle; Steve M. Ziola; Bernhard Seidel
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Paper Abstract

This paper will present the findings from crack detection monitoring on the 777 full-scale aircraft during fatigue testing. Crack detection is a critical component of any comprehensive aircraft structural health-monitoring system. Health monitoring offers the promise of substantially reduced inspection and maintenance costs for military aircraft. To date, most testing has been performed in the laboratory on relatively small coupons and subcomponents. A persistent concern with broadband acoustic emission methods has been their ability to measure crack signals in the presence of noise. There is little broadband acoustic emission test data to provide any indication of the possible difficulties in monitoring a full-scale structure. This paper will present test data, results and discussion from broadband acoustic emission monitoring of the 777 Full-Scale Fatigue Test.

Paper Details

Date Published: 6 June 1997
PDF: 11 pages
Proc. SPIE 3042, Smart Structures and Materials 1997: Smart Sensing, Processing, and Instrumentation, (6 June 1997); doi: 10.1117/12.275745
Show Author Affiliations
Ian R. Searle, Boeing Defense & Space Group (United States)
Steve M. Ziola, Digital Wave Corp. (United States)
Bernhard Seidel, Boeing Commercial Airplane Group (United States)

Published in SPIE Proceedings Vol. 3042:
Smart Structures and Materials 1997: Smart Sensing, Processing, and Instrumentation
Richard O. Claus, Editor(s)

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