✦ LIBER ✦

Transient dynamic response of a coated piezoelectric strip with a vertical crack

✍ Scribed by Sei Ueda

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 340 KB
Volume: 22
Category: Article
ISSN: 0997-7538
DOI: 10.1016/s0997-7538(03)00073-1

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✦ Synopsis

In this study, the dynamic response of a coated piezoelectric strip containing a crack vertical to the interfaces under normal impact load is considered. Based on the superposition principle and the integral transform techniques, the solution in the Laplace transformed plane is obtained in terms of a singular integral equation. The order of stress singularity around the tip of the terminated crack is also obtained. The singular integral equation is solved by using the Gauss-Jacobi integration formula, and the numerical Laplace inversion is then carried out to obtain the resulting dynamic stress and electric displacement intensities. The effects of the material properties and the geometric parameters on the dynamic stress intensity factor and the dynamic energy density factors are shown graphically.

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