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Journal of Zhejiang University SCIENCE A 2001 Vol.2 No.2 P.157-160

http://doi.org/10.1631/jzus.2001.0157


EDGE SINGULARITY OF BONDED PIEZOELECTRIC MATERIALS WITH REPEATED EIGENVALUES


Author(s):  WANG Xiao-gui, XU Jin-quan

Affiliation(s):  Department of Mechanics, Zhejiang University, Hangzhou 310027, China

Corresponding email(s): 

Key Words:  piezoelectric material, axisymmetric interface edge, singularity, electrical displacement


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WANG Xiao-gui, XU Jin-quan. EDGE SINGULARITY OF BONDED PIEZOELECTRIC MATERIALS WITH REPEATED EIGENVALUES[J]. Journal of Zhejiang University Science A, 2001, 2(2): 157-160.

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Abstract: 
In piezoelectric problems, the form of the general solution is dependent on the eigenvalues of the material. The singular stress field and electrical displacement field near the interface edge were deduced in this study. The results showed that the stress field and the electrical displacement field have the same singularity; and that the singularity depends not only on the mechanical properties and shape of the interface edge, but also on the piezoelectric properties of the composite material.

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Reference

[1] Beom, H. G., Atluri, S. N., 1996. Near-tip fields and intensity factors for interfacial cracks in dissimilar anisotropic piezoelectric media. International Journal of Fracture, 75: 163.

[2] Ding, H. J., Chen, B., Liang, J., 1996. General solutions for coupled equations for piezoelectric media. International Journal of Solids Structures, 33(16):2283.

[3] Liu, Y. H., Xu, J. Q., Ding, H. J., 1999. An axisymmetric interface edge of bonded transversely isotropic piezoelectric materials under torsion. Journal of Applied Mechanics, 66: 821.

[4] Parton, V. Z., 1976. Fracture mechanics of piezoelectric materials. Acta Astronautica, 3: 671.

[5] Sosa, H. A., Pak, Y. E., 1990. Three-dimensional eigenfunction analysis of a crack in a piezoelectric material. International Journal of Solids Structures, 26: 1.

[6] Suo, Z., Kuo, C. M., Barnett, D. M., et al., 1992. Fracture mechanics for piezoelectric ceramics. J. Mech. Phys. Solids, 40(4): 739.

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