Dynamic characteristics of an eccentric crack in a functionally graded piezoelectric ceramic strip
- 75 Downloads
The dynamic response of an eccentric Griffith crack in functionally graded piezoelectric ceramic strip under anti-plane shear impact loading is analysed using integral transform method. Laplace transform and Fourier transform are used to reduce the problem to two pairs of dual integral equations, which are then expressed to Fredholm integral equations of the second kind. We assume that the properties of the functionally graded piezoelectric material vary continuously along the thickness. The impermeable crack boundary condition is adopted. Numerical values on the dynamic stress intensity factors are presented for the functionally graded piezoelectric material to show the dependence of the gradient of material properties and electric loadings.
Key wordsPiezoelectric Eccentric Crack FGM (Functionally Graded Material) DSIF (Dynamic Stress Intensity Factor)
Eccentricity off the center line
Non-homogeneous material constant
Unable to display preview. Download preview PDF.
- Chen, Z. T. and Yu, S. W., 1997, “Anti-plane Dynamic Fracture Mechanics in Piezoelectric Materials,”International Journal of Fracture, Vol. 85, pp. L3-L12.Google Scholar
- Narita, F. and Shindo, Y., 1998, “Scattering of Love Waves by a Surface-breaking Crack in Piezoelectric Layered Media,”JSME International Journal Series A, Vol. 41 No. 1, pp. 40–48.Google Scholar
- Shin, J. W., Kim, T. U. and Kim, S. C., 2003, “Transient Response of Functionally Graded Piezoelectric Ceramic with Crack,”Journal of The Korean Society for Composite Materials, Vol. 16, No. 5, pp. 21–27.Google Scholar
- Shindo, Y. and Ozawa, E., 1990,Dynamic Analysis of a Piezoelectric material. In:R.K.T., Hsieh (Ed.),Mechanical modeling of new electromagnetic materials, Elsevier Science Publishers, Amsterdam, pp. 297–304.Google Scholar