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Interaction between subinterface cracks and interface in metal/piezoelectric ceramic bimaterials

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Abstract

A class of problems concerning subinterface cracks interacting with the interface in metal/piezoelectric ceramic bimaterials are studied. The interaction problem is reduced to a system of integral equations with the aid of the pseudo-traction-electric-displacement method. The equations are solved numerically, and the stress, intensity factor, the electric displacement intensity factor and the mechanical strain energy release rate are evaluated. Numerical results of a Cu/PZT-4 bimaterial are given and shown in figures, in which three kinds of remote loading conditions are considered to make comparisions. It is found that the electric loading at infinity plays a quite important role in the present interaction problem. In addition, a conservation law of the first component of the J k-integral, vector is found; which does lead to a consistency check to confirm the effectiveness of the PTEDM as well as the numerical results derived in this paper.

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Authors and Affiliations

  1. School of Mechanical Engineering, Taiyuan University of Technology, 030024, Taiyuan, China

    Wenye Tian

  2. School of Civil Engineering and Mechanics, Xi’ an Jiaotong University, 710049, Xi’ an, China

    Yiheng Chen

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  1. Wenye Tian
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  2. Yiheng Chen
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Correspondence to Wenye Tian.

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Tian, W., Chen, Y. Interaction between subinterface cracks and interface in metal/piezoelectric ceramic bimaterials. Sci. China Ser. E-Technol. Sci. 45, 10–18 (2002). https://doi.org/10.1360/02ye9002

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  • DOI: https://doi.org/10.1360/02ye9002

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