The research investigates a Lamb-Wave based structural health monitoring approach matching an out-of-phase actuation of a pair of piezoceramic transducers at low frequency. The target is a typical quasi-isotropic carbon fibre reinforced polymer aeronautical laminate subjected to artificial, via Teflon Patches, and natural, via suitable low velocity drop weight impact tests, delaminations. The performance and main influencing factors of such an approach are studied through a Design of Experiment statistical method, considering both Pulse Echo and Pitch Catch configurations of PZT sensors. Results show that some factors and their interactions can effectively influence the detection of a delamination-like damage.

A Lamb waves based statistical approach to structural health monitoring of carbon fibre reinforced polymer composites

CARBONI, MICHELE EZIO RUGGERO MARIA;GIANNEO, ANDREA;GIGLIO, MARCO
2015-01-01

Abstract

The research investigates a Lamb-Wave based structural health monitoring approach matching an out-of-phase actuation of a pair of piezoceramic transducers at low frequency. The target is a typical quasi-isotropic carbon fibre reinforced polymer aeronautical laminate subjected to artificial, via Teflon Patches, and natural, via suitable low velocity drop weight impact tests, delaminations. The performance and main influencing factors of such an approach are studied through a Design of Experiment statistical method, considering both Pulse Echo and Pitch Catch configurations of PZT sensors. Results show that some factors and their interactions can effectively influence the detection of a delamination-like damage.
2015
Carbon Fibre Reinforced Polymer Composite; Ultrasonic Lamb Waves; Structural Health Monitoring; Barely Visible Impact Damage; Design of Experiments; Analysis of Variance
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/936557
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