Produção Nacional
Revisado por pares
Evaluation of the electromechanical behavior of polyvinylidene fluoride used as a component of risers in the offshore oil industry
2018; EDP Sciences; Volume: 73; Linguagem: Inglês
10.2516/ogst/2018058
ISSN1953-8189
AutoresKhrissy Aracélly Reis Medeiros, Eduardo Queirós Rangel, Alexandre Ribeiro Sant’Anna, Daniel Ramos Louzada, Carlos Roberto Hall Barbosa, José Roberto Moraes d’Almeida,
Tópico(s)High voltage insulation and dielectric phenomena
ResumoA sample of polyvinylidene fluoride removed from a riser component was tested in laboratory to evaluate its electromechanical behavior. For this, an experimental setup was developed, after Fourier Transform Infrared Spectroscopy (FTIR) results have shown through the absorption bands, that this sample had a spectrum of the piezoelectric phase β . In order to identify if such sample would be able to respond electrically to the application of external mechanical excitation applied by a shaker, measurements were made of the induced voltages by piezoelectric effect, with varying accelerations and frequencies. The results indicated that the material, although it has not been processed for this purpose, responds electrically to the applied mechanical stimulus, demonstrating a good correlation between the measured signals and the accelerations.
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