"New Approach to Solving Crack Tip Stress Fields in Piezoelectric Materials"
Publication Type:
Conference
Authors:
Co-Authors:
Lynch, C.S.
Year Published:
2003
Abstract:
A new technique has been developed which solves the anisotropic stress fields in piezoelectric materials. The technique utilizes orthotropy rescaling by rescaling the coordinate axes in terms of certain elastic, piezoelectric and dielectric material coefficients to obtain the biharmonic equation. The steps which lead to the biharmonic equation require decoupling the stress and electric field components. It is shown that for a certain ratio of dielectric and piezoelectric coefficients, an applied electric field does not change the stress field near a crack tip. The new technique is compared to Stroh's formalism and to finite element modeling.
Conference Name:
Smart Structures and Materials
Conference Location:
San Diego, California, United States
Other Numbers:
v. 5053, pp. 376-386
Refereed Designation:
Date Published:
8/13/2003