On the Effect of the Volumetric Deformation in Soft Dielectric Composites with High Phase Contrast
| Autor: | Lorenzo Bardella, Valentina Volpini, Massimiliano Gei |
|---|---|
| Přispěvatelé: | Bardella, L., Volpini, V., Gei, M. |
| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
Volumetric deformation
Dielectric elastomer Electromechanical actuation Finite deformation Laminated composite Phase contrast Mechanics of Materials Mechanical Engineering General Materials Science Dielectric elastomer Laminated composite Volumetric deformation Phase contrast Finite deformation Electromechanical actuation |
| Popis: | Towards the accurate modelling of soft dielectric composites, this investigation aims at demonstrating that the incompressibility constraint customarily adopted in the literature may lead to largely inaccurate predictions. This claim is grounded on the premise that, even though in these composites each phase may individually be assumed to be incompressible, the volumetric deformation of the softest phase can provide a significant contribution to the effective behaviour if the phase contrast is high enough. To reach our goal, we determine the actuation response of two-phase dielectric laminated composites (DLCs) where the softest phase admits volumetric deformation. Our results, discussed in the light of the limit case in which the softest phase consists of vacuum, on the one hand, challenge the hypotheses usually assumed in the modelling of soft dielectric composites and, on the other hand, are expected to provide useful information for the design of high-performance hierarchical DLCs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|