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Sensors, Vol. 18, Pages 2084: An Innovative Diagnostic Film for Structural Health Monitoring of Metallic and Composite Structures

Sensors, Vol. 18, Pages 2084: An Innovative Diagnostic Film for Structural Health Monitoring of Metallic and Composite Structures

Sensors doi: 10.3390/s18072084

Authors: Dimitrios G. Bekas Zahra Sharif-Khodaei M.H. Ferri Aliabadi

A novel lightweight diagnostic film with sensors/actuators and a multiple-path wiring option using inkjet printing was developed. The diagnostic film allows for systematic, accurate, and repeatable sensor placement. Furthermore, the film is highly flexible and adaptable for placement on complex configurations. The film can be attached to the surface of the structure through a uniform secondary boundary procedure or embedded within the composite layup during curing. The surface-mounted film can simply be peeled off for repair or replacement without scratching or damaging the part. The film offers significant weight reduction compared to other available technologies. A set of extreme temperature, altitude, and vibration environment test profiles were carried out following the Radio Technical Commission for Aeronautics (RTCA) DO-160 document to assess the durability and performance of the diagnostic film for onboard application. The diagnostic film was shown to be durable and reliable in withstanding the variable operational and harsh environmental conditions of tests representing the conditions of regional aircraft.

Authors:   Bekas, Dimitrios G.; Sharif-Khodaei, Zahra ; Aliabadi, M.H. Ferri
Journal:   Sensors
Volume:   18
edition:   7
Year:   2018
Pages:   2084
DOI:   10.3390/s18072084
Publication date:   29-Jun-2018
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