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Thermal failure of flexible rectangular viscoelastic plates with distributed sensors and actuators

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Abstract

The problem of thermal failure of simply supported flexible rectangular plates with distributed sensors and actuators as a result of dissipative heating by forced resonant bending vibrations is considered. The plates are loaded by a uniformly distributed, harmonic-in-time pressure. The mechanical problem is solved by the Galerkin method and the method of harmonic balance. The influence of dissipative heating on the efficiency of active damping of the forced resonant vibrations of the flexible plates is investigated. By equating the temperature to the Curie point, a simple expression for the critical mechanical load is obtained. When the load is more this critical value the active materials lose the piezoelectric effect and become passive. This is a specific type of thermal failure, where the body keeps its integrity but the electromechanical system loses its functionality.

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Correspondence to V. G. Karnaukhov.

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Karnaukhov, V.G., Karnaukhova, T.V. & McGillicuddy, O. Thermal failure of flexible rectangular viscoelastic plates with distributed sensors and actuators. J Eng Math 78, 199–212 (2013). https://doi.org/10.1007/s10665-011-9514-0

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  • DOI: https://doi.org/10.1007/s10665-011-9514-0

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