Abstract
Validation of a new method for ultrasonic structural health monitoring using advanced signal analysis. This paper presents the results of research on a new method for the monitoring of structural health using ultrasound.
Conventional ultrasonic methods use the damping of the first arrival of the echo to determine imperfections, whereas this method uses the total complex echo, which has been subjected to multiple scattering and deflections within the tested material. It is experimentally demonstrated that the method works for health monitoring of a composite flat plate. A reference signal of an undamaged plate was recorded, which was correlated with recorded control signals of a damaged and a doubly damaged plate. To quantify this correlation the parameter fidelity was used. As the control signals are correlated with the reference signal the correlation is supposed to decrease as the plate is damaged and decrease further as the plate is doubly damaged.
Conventional ultrasonic methods use the damping of the first arrival of the echo to determine imperfections, whereas this method uses the total complex echo, which has been subjected to multiple scattering and deflections within the tested material. It is experimentally demonstrated that the method works for health monitoring of a composite flat plate. A reference signal of an undamaged plate was recorded, which was correlated with recorded control signals of a damaged and a doubly damaged plate. To quantify this correlation the parameter fidelity was used. As the control signals are correlated with the reference signal the correlation is supposed to decrease as the plate is damaged and decrease further as the plate is doubly damaged.
Original language | English |
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Title of host publication | Air transport and operations |
Subtitle of host publication | proceedings of the Second International Air Transport and Operations Symposium 2011 |
Editors | R. Curran, W. Verhagen, F. van der Zwan, A. Ghobbar, W.W.A. Beelaerts van Blokland, S.C. Santema |
Place of Publication | Delft |
Publisher | IOS Press |
Pages | 408-412 |
ISBN (Electronic) | 9781607508120 |
ISBN (Print) | 9781607508113 |
DOIs | |
Publication status | Published - 28 Mar 2011 |
Event | Second International Air Transport and Operations Symposium 2011 - TU Delft, Delft, Netherlands Duration: 28 Mar 2011 → 29 Mar 2011 |
Conference
Conference | Second International Air Transport and Operations Symposium 2011 |
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Abbreviated title | ATOS 2011 |
Country/Territory | Netherlands |
City | Delft |
Period | 28/03/11 → 29/03/11 |