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10 May 2024 Development and testing of graphene nanofilled sensors applied on composite aerospace structural items for structural dynamic and SHM applications
Ernesto Monaco, Fabrizio Ricci, Massimo Viscardi, Pietro Russo
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Proceedings Volume 12951, Health Monitoring of Structural and Biological Systems XVIII; 129511Y (2024) https://doi.org/10.1117/12.3010165
Event: SPIE Smart Structures + Nondestructive Evaluation, 2024, Long Beach, California, United States
Abstract
Structural Health Monitoring appears to be among the few possible strategies in order to reduce maintenance costs and weights of aerospace composite structures by sensorising structures employing secondary bonded or embedded sensors and condition monitoring strategies. Within an SHM global strategy sensors can be employed to detect damaging events (i.e. impacts) or to verify the health status by acquiring signals related to waves traveling into structures. Piezoresistive sensors based on nanotubes or graphene like particles dispersed into a polymer or any other matrix have been developed and characterized during latest years since they present the advantages of easy application and low weight addiction to the primary structure as well as low costs and high integration potentialities. Their sensitivity and gauge factors can vary a lot depending on the percentage of graphene material dispersion, from the matrix type and viscosity, from the dimensions of the sensor and from its shape. This work presents the preliminary results related to new typologies of sensors obtained by melt polystyrene compounding with different amounts of graphene nanoplatelets combined with carbon nanotubes.
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Ernesto Monaco, Fabrizio Ricci, Massimo Viscardi, and Pietro Russo "Development and testing of graphene nanofilled sensors applied on composite aerospace structural items for structural dynamic and SHM applications", Proc. SPIE 12951, Health Monitoring of Structural and Biological Systems XVIII, 129511Y (10 May 2024); https://doi.org/10.1117/12.3010165
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KEYWORDS
Sensors
Graphene
Structural health monitoring
Aerospace engineering
Structural dynamics
Composites
Matrices
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