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Proceedings Paper

Phase-field modeling of domain switching near crack tips in single crystal ferroelectrics
Author(s): Wenyuan Li; Chad M. Landis
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Paper Abstract

Domain switching near a stationary crack tip in a single crystal of ferroelectric material is investigated. The phase-field approach applying the material polarization as the order parameter is used as the theoretical modeling framework, and the finite element method is used for the numerical solution technique. The electromechanical form of the J-integral is appropriately modified to account for the polarization gradient energy terms, and analyzed to illustrate the amount of shielding, or lack thereof, due to domain switching at the crack tip.

Paper Details

Date Published: 2 April 2008
PDF: 9 pages
Proc. SPIE 6929, Behavior and Mechanics of Multifunctional and Composite Materials 2008, 69290J (2 April 2008); doi: 10.1117/12.782712
Show Author Affiliations
Wenyuan Li, The Univ. of Texas at Austin (United States)
Chad M. Landis, The Univ. of Texas at Austin (United States)


Published in SPIE Proceedings Vol. 6929:
Behavior and Mechanics of Multifunctional and Composite Materials 2008
Marcelo J. Dapino; Zoubeida Ounaies, Editor(s)

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