0
research-article

Butterfly Change in Electric Field-Dependent Young?s Modulus: Bulge Test and Phase Field Model

[+] Author and Article Information
Honglong Zhang

College of Civil Engineering and Transportation, South China University of Technology, Guangzhou 510640, China
zhanghl130908@163.com

Zejun Yu

State Key Laboratory for Turbulence and Complex Systems, College of Engineering, Peking University, Beijing 100871, China
yuzj@pku.edu.cn

Yongmao Pei

State Key Laboratory for Turbulence and Complex Systems, College of Engineering, Peking University, Beijing 100871, China
peiym@pku.edu.cn

Daining Fang

Institute of Advanced Structure Technology, Beijing Institute of Technology, 100081, Beijing, China
fangdn@pku.edu.cn

1Corresponding author.

ASME doi:10.1115/1.4036298 History: Received January 18, 2017; Revised March 15, 2017

Abstract

The field-dependent Young's modulus shows a promising application in the design and miniaturization of phononic crystals, tunable mechanical resonators, interdigital transducers, etc. With the multi-field bulge-test instrument developed by our group, the electric field-tunable elastic modulus of ferroelectric films has been studied experimentally. A butterfly change in Young's modulus of PZT film under biaxial tensile stress state with electric field has been discovered for the first time. Based on phase field model, an electro-mechanical coupling model is constructed and a case of PZT ferroelectric film subjected to a vertical electric field and horizontal tensile strains is simulated. The numerical results show that the change in Young's modulus is proportional to the variation of volume fraction of 90o domain switching under a pure tensile strain. It is the constraint of 90o domain switching by electric field that contributes to the butterfly change in elastic modulus.

Copyright (c) 2017 by ASME
Your Session has timed out. Please sign back in to continue.

References

Figures

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In