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Proceedings Paper

Damage detection with ultrasonic guided wave under operational conditions (Conference Presentation)
Author(s): M. Salmanpour; Z. Sharif Khodaei; M. H. Aliabadi

Paper Abstract

Typical airliners operate in a range of conditions, hence airborne structural health monitoring (SHM) components, must withstand the relevant environmental conditions. Additional to the integrity of the components, the SHM performance (diagnosis and prognosis) must be robust and reliable under environmental and vibration profiles during operation. This work investigates the influence of the operational condition (including temperature, humidity and vibration loads) on the integrity of a piezoelectric based SHM system in terms of integrity of the system and robustness of the diagnosis for detecting barely visible impact damage (BVID) on a CFRP panel. Consequently, compensation techniques are proposed to remove the effect of the environmental loading on the decision-making algorithm. The validity of the proposed algorithm is demonstrated on a composite plate for the operational profile defined in MIL-STD 180G standard for airborne components of a regional aircraft.

Paper Details

Date Published: 27 March 2018
PDF
Proc. SPIE 10598, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018, 105980A (27 March 2018); doi: 10.1117/12.2318696
Show Author Affiliations
M. Salmanpour, Imperial College London (United Kingdom)
Z. Sharif Khodaei, Imperial College London (United Kingdom)
M. H. Aliabadi, Imperial College London (United Kingdom)


Published in SPIE Proceedings Vol. 10598:
Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2018
Hoon Sohn, Editor(s)

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