Topology optimization of piezoelectric nanostructures
- verfasst von
- Srivilliputtur Subbiah Nanthakumar, Tom Lahmer, Xiaoying Zhuang, Harold S. Park, Timon Rabczuk
- Abstract
We present an extended finite element formulation for piezoelectric nanobeams and nanoplates that is coupled with topology optimization to study the energy harvesting potential of piezoelectric nanostructures. The finite element model for the nanoplates is based on the Kirchoff plate model, with a linear through the thickness distribution of electric potential. Based on the topology optimization, the largest enhancements in energy harvesting are found for closed circuit boundary conditions, though significant gains are also found for open circuit boundary conditions. Most interestingly, our results demonstrate the competition between surface elasticity, which reduces the energy conversion efficiency, and surface piezoelectricity, which enhances the energy conversion efficiency, in governing the energy harvesting potential of piezoelectric nanostructures.
- Organisationseinheit(en)
-
Institut für Kontinuumsmechanik
- Externe Organisation(en)
-
Bauhaus-Universität Weimar
Tongji University
Boston University (BU)
Ton Duc Thang University
Korea University
- Typ
- Artikel
- Journal
- Journal of the Mechanics and Physics of Solids
- Band
- 94
- Seiten
- 316-335
- Anzahl der Seiten
- 20
- ISSN
- 0022-5096
- Publikationsdatum
- 12.05.2016
- Publikationsstatus
- Veröffentlicht
- Peer-reviewed
- Ja
- ASJC Scopus Sachgebiete
- Physik der kondensierten Materie, Werkstoffmechanik, Maschinenbau
- Elektronische Version(en)
-
https://doi.org/10.1016/j.jmps.2016.03.027 (Zugang:
Geschlossen)
