Remote AE Monitoring of Fatigue Crack Growth in Complex Aircraft Structures

0386201 - ÚT 2013 RIV ES eng C - Conference Paper (international conference)
Chlada, Milan - Převorovský, Zdeněk
Remote AE Monitoring of Fatigue Crack Growth in Complex Aircraft Structures.
30th European Conference on Acoustic Emission Testing : 7th International Conference onAcoustic Emission. Granada: University of Granada, 2012 - (Gallego, A.; Ono, K.), s. 1-8. ISBN 978-84-615-9941-7.
[Europen Conference on Acoustic Emission Testing/30./ & International Conference on Acoustic Emission/7./. Granada (ES), 12.09.2012-15.09.2012]
R&D Projects: GA ČR(CZ) GAP104/10/1430; GA MPO(CZ) FR-TI1/274
Institutional support: RVO:61388998
Keywords : acoustic emission * source location * neural networks * arrival time profiles
Subject RIV: BI - Acoustics

Recently proposed AE source location method using so-called signal arrival time profiles and artificial neural networks (ANN) was applied to growing defect monitoring during long-term fatigue test of aircraft structures. The main goal of AE monitoring was to detect the growth of small cracks and to test the new AE source location methodology as a part of Structural Health Monitoring system. The remote long distance on-line monitoring of dangerous crack growth in critical aircraft structure parts was tested. The paper illustrates localization of large amount of AE events, mostly of unknown or unconfirmed source origin. All finally revealed cracks were predicted by AE before they became visible.
Permanent Link: http://hdl.handle.net/11104/0216161