Detection of AE Sources During Long-term Fatigue Tests of Riveted Aircraft Wing Flange

0366791 - ÚT 2012 RIV CZ eng C - Conference Paper (international conference)
Chlada, Milan - Převorovský, Zdeněk
Detection of AE Sources During Long-term Fatigue Tests of Riveted Aircraft Wing Flange.
NDT in Progress 2011. Brno: University of Technology Brno, 2011 - (Mazal, P.), s. 93-98. ISBN 978-80-214-4339-6.
[NDT in PROGRESS /6./. Praha (CZ), 10.10.2011-12.10.2011]
R&D Projects: GA ČR(CZ) GAP104/10/1430; GA MPO(CZ) FR-TI1/274
Institutional research plan: CEZ:AV0Z20760514
Keywords : acoustic emission * source localization * neual networks * arrival time profiles
Subject RIV: BI - Acoustics

Fracture is the primary threat to the integrity, safety, and performance of nearly all highly stressed mechanical structures, e.g., aircrafts, building units or pressure vessels. Contemporary exacting demands on reliability and safety of material structures are not realizable without effective means of NDT and continuous state monitoring. AE monitoring of structures needs new robust and fast methods for emission source location and classification. Recently proposed AE source location method using so-called signal arrival time profiles and artificial neural networks (ANN) was applied for monitoring of growing defects during long-term fatigue testing of riveted aircraft wing flange. The potentialities of the method regarding the on-line monitoring of dangerous crack growth in selected critical parts of aircraft structures are discussed.
Permanent Link: http://hdl.handle.net/11104/0201656