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Proceedings Paper

Analysis of poling induced cracking in thick walled cylinders
Author(s): Sike Liu; David Pisani; C. S. Lynch
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Paper Abstract

Stresses and electric fields induced in the poling processes of both polycrystalline and single crystal thick walled cylinders are investigated and compared using a finite element analysis together with a micromechanical ferroelectric constitutive law. The analysis reveals that the polarization process begins at the inner diameter and spreads outward through the cylinder as the applied electric potential is increased. The piezoelectric strain and the remnant strain produce strain fields that are not compatible with the geometry. In the single crystal material the poling is not uniform. It is affected by the angle between the crystal orientation and the electric field direction.

Paper Details

Date Published: 31 March 2010
PDF: 10 pages
Proc. SPIE 7644, Behavior and Mechanics of Multifunctional Materials and Composites 2010, 764409 (31 March 2010); doi: 10.1117/12.847767
Show Author Affiliations
Sike Liu, Univ. of California, Los Angeles (United States)
David Pisani, Univ. of California, Los Angeles (United States)
C. S. Lynch, Univ. of California, Los Angeles (United States)


Published in SPIE Proceedings Vol. 7644:
Behavior and Mechanics of Multifunctional Materials and Composites 2010
Zoubeida Ounaies; Jiangyu Li, Editor(s)

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