Show simple item record

contributor authorZhang, Honglong
contributor authorYu, Zejun
contributor authorPei, Yongmao
contributor authorFang, Daining
date accessioned2017-11-25T07:16:34Z
date available2017-11-25T07:16:34Z
date copyright2017/5/4
date issued2017
identifier issn0021-8936
identifier otherjam_084_05_051009.pdf
identifier urihttp://138.201.223.254:8080/yetl1/handle/yetl/4234064
description abstractThe 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 multifield bulge-test instrument developed by our group, the electric field-tunable elastic modulus of ferroelectric films has been studied experimentally. A butterfly change in the Young's modulus of lead titanate zirconate (PZT) film under biaxial tensile stress state with electric field has been discovered for the first time. Based on the phase field model, an electromechanical 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 the Young's modulus is proportional to the variation of volume fraction of 90-deg domain switching under a pure tensile strain. It is the constraint of 90-deg domain switching by the electric field that contributes to the butterfly change in the elastic modulus.
publisherThe American Society of Mechanical Engineers (ASME)
titleButterfly Change in Electric Field-Dependent Young's Modulus: Bulge Test and Phase Field Model
typeJournal Paper
journal volume84
journal issue5
journal titleJournal of Applied Mechanics
identifier doi10.1115/1.4036298
journal fristpage51009
journal lastpage051009-6
treeJournal of Applied Mechanics:;2017:;volume( 084 ):;issue: 005
contenttypeFulltext


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record