DocumentCode
2982563
Title
Analytical modeling of the variation in apparent d33 piezoelectric coefficient measured by the direct quasistatic method as a function of sample aspect ratio
Author
Barzegar, Abdolghaffar ; Damjanovic, D. ; Setter, N.
Author_Institution
Ceramic Laboratory, Swiss Fed. Inst. of Technol., Lausanne, Switzerland
fYear
2004
fDate
23-27 Aug. 2004
Firstpage
293
Lastpage
296
Abstract
In this study we present an analytical model in which apparent (measured) d33 is a function of the aspect ratio, the mechanical properties of the contacts and the properties of piezoelectric ceramics. Using derived relations it is possible to obtain the true value of d33 in the wide range of boundary conditions. The analytical results are compared with simulations using finite element modeling (FEM) and with experimental data, and good correlation is found among them. Effect of the geometry of the contacts used to apply the force and collect the piezoelectric charge from the sample on apparent d33 value is specifically addressed.
Keywords
finite element analysis; mechanical contact; piezoceramics; stress-strain relations; aspect ratio; contacts; direct quasistatic method; finite element modeling; geometry; mechanical properties; piezoelectric ceramics; piezoelectric charge; piezoelectric coefficient; Analytical models; Boundary conditions; Ceramics; Ferroelectric materials; Finite element methods; Geometry; Laboratories; Mechanical factors; Mechanical variables measurement; Piezoelectric materials;
fLanguage
English
Publisher
ieee
Conference_Titel
Applications of Ferroelectrics, 2004. ISAF-04. 2004 14th IEEE International Symposium on
ISSN
1099-4734
Print_ISBN
0-7803-8410-5
Type
conf
DOI
10.1109/ISAF.2004.1418394
Filename
1418394
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