Flexoelectricity and apparent piezoelectricity of a pantographic micro-bar
| Autor: | Victor A. Eremeyev, Jean-François Ganghoffer, Nikolay S. Uglov, Violetta Konopińska-Zmysłowska |
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| Přispěvatelé: | Gdańsk University of Technology (GUT), Laboratoire d'Etude des Microstructures et de Mécanique des Matériaux (LEM3), Centre National de la Recherche Scientifique (CNRS)-Université de Lorraine (UL)-Arts et Métiers Sciences et Technologies, HESAM Université (HESAM)-HESAM Université (HESAM), Nizhny Novgorod State Technical University, 24 Minin Street, Nizhny Novgorod, 603950, Russia, Technical University, Nizhny Novgorod, Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Arts et Métiers Sciences et Technologies |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Torsion
Materials science Shear stiffness Flexoelectricity Piezoelectricity 02 engineering and technology [SPI]Engineering Sciences [physics] 0203 mechanical engineering General Materials Science Effective properties Composite material ComputingMilieux_MISCELLANEOUS Beam-lattice Mechanical Engineering High Energy Physics::Phenomenology General Engineering Torsion (mechanics) 021001 nanoscience & nanotechnology Pantographic structure Condensed Matter::Soft Condensed Matter Polarization density 020303 mechanical engineering & transports Mechanics of Materials 0210 nano-technology Effective stiffness |
| Zdroj: | International Journal of Engineering Science International Journal of Engineering Science, Elsevier, 2020, 149, pp.103213. ⟨10.1016/j.ijengsci.2020.103213⟩ |
| ISSN: | 0020-7225 |
| DOI: | 10.1016/j.ijengsci.2020.103213⟩ |
| Popis: | International audience; We discuss a homogenized model of a pantographic bar considering flexoelectricity. A pantographic bar consists of relatively stiff small bars connected by small soft flexoelectric pivots. As a result, an elongation of the bar relates almost to the torsion of pivots. Taking into account their flexoelectric properties we find the corresponding electric polarization. As a results, the homogenized pantographic bar demonstrates piezoelectric properties inherited from the flexoelectric properties of pivots. The effective stiffness properties of the homogenized bars are determined by the geometry of the structural elements and shear stiffness whereas the piezoelectric properties follow from the flexoelectric moduli of the pivots. |
| Databáze: | OpenAIRE |
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