Effect of Columbic Force on Piezoelectric Fracture

Abstract:

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This paper studies the effect of the Columbic force on piezoelectric fracture. Bound charges emerge on the upper and lower surfaces of a permeable crack when a piezoelectric solid with the crack is subjected to far-field mechanical/electric loading. Taking into account the Columbic force between the bound charges, we obtain a non-linear equation governing the normal component of electric displacement D2(x1)on the crack faces. The results show that D2(x1)is, in general, not a constant along the crack faces and depends on the mechanical/electric loading conditions, the crack profile and the material properties outside and inside the crack. Furthermore, we examine the Columbic force under low mechanical/electric loads and then discuss the effect of the Columbic force on the fracture behaviour of piezoelectric materials.

Info:

Periodical:

Key Engineering Materials (Volumes 261-263)

Edited by:

Kikuo Kishimoto, Masanori Kikuchi, Tetsuo Shoji and Masumi Saka

Pages:

81-86

DOI:

10.4028/www.scientific.net/KEM.261-263.81

Citation:

C. F. Gao et al., "Effect of Columbic Force on Piezoelectric Fracture", Key Engineering Materials, Vols. 261-263, pp. 81-86, 2004

Online since:

April 2004

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Price:

$35.00

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