Skip to Main content Skip to Navigation
Journal articles

Apparent Flexoelectricity due to Heterogeneous Piezoelectricity

Abstract : Recent work has highlighted how the phenomenon of flexoelectricity can masquerade as piezoelectricity. This notion can not only be exploited to create artificial piezoelectric-like materials without using piezoelectric materials, but may also explain measurement artifacts in dielectrics. In this article, we show that the reverse is also possible and potentially advantageous in certain situations (such as energy harvesting). By constructing a computational homogenization approach predicated on the finite element method, we argue that composites made of piezoelectric phases can conspire to endow the material with a distinct overall flexoelectric-like response even though the native flexoelectricity of the constituent materials is negligible. Full finite element procedures for numerical evaluation of the different effective tensors, including the flexoelectric tensor, are provided. Numerical investigations are conducted, showing variation of the effective flexoelectric properties with respect to local geometry and properties of the composite in piezoelectric-piezoelectric and polymer-piezoelectric composites. We find that the flexoelectric response can be tuned to nearly five times higher than the constituents.
Document type :
Journal articles
Complete list of metadata
Contributor : J. Yvonnet Connect in order to contact the contributor
Submitted on : Thursday, December 3, 2020 - 9:08:17 AM
Last modification on : Wednesday, November 3, 2021 - 9:26:49 AM
Long-term archiving on: : Thursday, March 4, 2021 - 6:29:54 PM


[86] PP.pdf
Files produced by the author(s)


  • HAL Id : hal-03037302, version 1



Julien Yvonnet, X Chen, P Sharma. Apparent Flexoelectricity due to Heterogeneous Piezoelectricity. Journal of Applied Mechanics, American Society of Mechanical Engineers, 2020, 87 (11), pp.111003. ⟨hal-03037302⟩



Record views


Files downloads