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Nonlinear Electromechanical Coupling in Ferroelectric Materials: Large Deformation and Hysteresis by Humer, Alexander; Pechstein, Astrid S.; Meindlhumer, Martin; Krommer, Michael is a Engineering article available to read on EtoBox.

What is Nonlinear Electromechanical Coupling in Ferroelectric Materials: Large Deformation and Hysteresis about?

## Abstract Smart materials respond to external stimuli, e.g., electric fields, which enables their use as sensors and actuators. The electromechanical coupling of the direct and converse piezoelectric effects, for instance, is used for both actuation and sensing in diverse engineering applications. The response of ferroelectric materials depends on their state of remanent polarization and the presence of an external electric field. To extend the operational range of sensors and actuators, an accurate understanding of the evolution of the material’s state of polarization is imperative, which requires both physical and geometric nonlinearities to be taken into account. Moreover, polymeric smart materials like PVDF allow significantly larger deformation as compared to conventional piezoelectric ceramics. The electromechanical coupling in piezoelectric materials manifests in ferroelectric and ferroelastic hystereses, which are related to both reversible and irreversible processes. Focusing on the latter, we transfer phenomenological models for domain switching in ferroelectric materials to the geometrically nonlinear regime. For this purpose, we follow related concepts of geometricall

Who reads Nonlinear Electromechanical Coupling in Ferroelectric Materials: Large Deformation and Hysteresis?

Author

Humer, Alexander; Pechstein, Astrid S.; Meindlhumer, Martin; Krommer, Michael

Publisher

Springer Vienna; Springer-Verlag; Springer Verlag; Springer Science and Business Media LLC (ISSN 0001-5970)

Published

2020

Language

EN

Field

Engineering (Physical Sciences)