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Dynamic Crack Analysis in Functionally Graded Piezoelectric Solids by Meshless Local Petrov-Galerkin Method

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Abstract:

In the present paper, the meshless local Petrov-Galerkin (MLPG) method is extended to two-dimensional (2-D) continuously nonhomogeneous piezoelectric solids with cracks under dynamic loading conditions. To eliminate the time-dependence, the Laplace-transform technique is applied to the governing partial differential equations which are satisfied in the Laplace-transformed domain in a weak-form on small fictitious subdomains. A meshless approximation is used for spatial variations of the displacements and the electric potential.

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Periodical:

Key Engineering Materials (Volumes 348-349)

Pages:

149-152

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.348-349.149

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Online since:

September 2007

Authors:

Jan Sladek, Vladimir Sladek, Chuan Zeng Zhang

Keywords:

2-d Problems, Continuously Nonhomogeneous Body, Laplace-Transcorm, Meshless Approximation, Piezoelectricity, Stehfest's Inversion, Stress Intensity Factor (SIF), Transient Elastodynamics

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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