On modeling of extension and flexure response of electroelastic shells under biasing fields

2002 ◽  
Vol 156 (3-4) ◽  
pp. 163-178 ◽  
Author(s):  
Y. T. Hu ◽  
J. S. Yang ◽  
Q. Jiang
Keyword(s):  
Biasing Fields

On the nature of internal biasing fields in ferroelectrics

1976 ◽  
Vol 12 (1) ◽  
pp. 147-148 ◽  
Author(s):  
O. P. Kramarov ◽  
G. E. Blokhina ◽  
S. P. Krivtsova
Keyword(s):  
Biasing Fields

Thickness vibrations of a piezoelectric plate under biasing fields

Ultrasonics ◽  
2006 ◽  
Vol 44 ◽  
pp. e853-e857 ◽  
Author(s):  
J.K. Du ◽  
J. Wang ◽  
Y.Y. Zhou
Keyword(s):  
Piezoelectric Plate ◽  
Biasing Fields

Tuning Band Structures of Two-Dimensional Phononic Crystals With Biasing Fields

2014 ◽  
Vol 81 (9) ◽  
Author(s):  
Y. Huang ◽  
C. L. Zhang ◽  
W. Q. Chen
Keyword(s):  
Electric Field ◽  
Phononic Crystals ◽  
Band Gaps ◽  
Two Dimensional ◽  
Plane Wave Expansion ◽  
Band Structures ◽  
Biasing Fields ◽  
Small Fields ◽  
Electric Field Change ◽  
Repulsion Effect

The control of band structures of 2D phononic crystals (PCs) composed of piezoelectric inclusions and elastic isotropic matrix with mechanical/electrical biasing fields is theoretically investigated. The theory for small fields superposed on biasing fields and the plane wave expansion (PWE) method is employed to compute the band structures of the PCs under different biasing fields, including the initial shear/normal stress and the initial electric field. We find that the initial shear stress breaks the symmetry of the material. In consequence, the two bands associated with the level repulsion effect are opened near the apparent crosspoint and form a local band gap. On the other hand, the normal initial stress and the biasing electric field change the effective stiffness and shift the positions of band gaps. The observed phenomena show that the biasing fields can be flexibly used to tune the PC devices.

Mechanics of electroelastic bodies under biasing fields

2004 ◽  
Vol 57 (3) ◽  
pp. 173-189 ◽  
Author(s):  
Jiashi Yang ◽  
Yuantai Hu
Keyword(s):  
Small Amplitude ◽  
Theoretical Foundation ◽  
Future Research ◽  
Biasing Fields ◽  
Acoustic Wave Sensors ◽  
Small Fields ◽  
Plates And Shells ◽  
Wave Sensors ◽  
Structural Theories

This is a review article on the mechanics of small-amplitude motions superposed on finite biasing or initial fields in an electroelastic body. It begins with a summary of the nonlinear theory of electroelasticity, which is the theoretical foundation for the theory of small fields superposed on a bias. This theory, obtained by different approaches, and the development of structural theories for electroelastic beams, plates, and shells under biasing fields are discussed. Applications of these theories for small fields superposed on biasing fields in the buckling of thin electroelastic structures, frequency stability of piezoelectric resonators for time-keeping and telecommunication, acoustic wave sensors based on frequency shifts due to biasing fields, characterization of nonlinear electroelastic materials by propagation of small-amplitude waves in electroelastic bodies under biasing fields, and electrostrictive ceramics which operate under a biasing electric field are reviewed. A summary of some current and possible future research topics in this field is given. The article contains 166 references.

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