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A Moving Mode-III Crack in a Functionally Graded Piezoelectric Strip

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Abstract

In this paper, the problem of a functionally graded piezoelectric strip with a constant-velocity Yoffe-type moving crack is considered. By using the Fourier transforms, the problem is first reduced to dual integral equations and then into Fredholm integral equations of the second kind. The electroelastic field near the crack tip is obtained for electrical impermeable boundary conditions and electrical permeable boundary conditions, respectively. The results obtained show that the gradient of the material properties can increase or decrease the magnitudes of the stress intensity factors, and the velocity can disturb the stress distribution near the crack tip.

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Authors and Affiliations

  1. Department of Mechanics, School of Mechanical Engineering, Tianjin University, Tianjin, 300072, China

    Keqiang Hu

  2. Key Laboratory of Solid Mechanics of M. O. E., School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai, 200092, P.R. China

    Zheng Zhong

  3. Department of Building Engineering, Tongji University, Shanghai, 200092, China

    Keqiang Hu

Authors
  1. Keqiang Hu
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  2. Zheng Zhong
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Correspondence to Zheng Zhong.

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Hu, K., Zhong, Z. A Moving Mode-III Crack in a Functionally Graded Piezoelectric Strip. Int J Mech Mater Des 2, 61–79 (2005). https://doi.org/10.1007/s10999-005-4443-6

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  • DOI: https://doi.org/10.1007/s10999-005-4443-6

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