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Interface edge crack in a multiferroic semicylinder

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Abstract

The purpose of the present work is to study the interface edge cracking problem in a semicircular cylindrical multiferroic composite theoretically by the methods of infinite series and singular integral equation. Numerical results of the stress intensity factor (SIF) are obtained and the computational accuracy is demonstrated. Discussion on the numerical results indicates that: (a) in order to reduce the SIF the inner piezoelectric layer should be softer and the outer piezomagnetic layer be stiffer; (b) the piezoelectric stiffening affect the SIF notably, but the piezomagnetic stiffening can only influence it very little.

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Authors and Affiliations

  1. Department of Mechanical Engineering, Academy of Armored Force Engineering, No. 21, Du Jia Kan, Chang Xin Dian, Beijing, 100072, P.R. China

    Yong-Dong Li & Fei-Xiang Feng

  2. School of Mechanical Engineering, Yonsei University, Seoul, 120-749, Republic of Korea

    Kang Yong Lee

Authors
  1. Yong-Dong Li
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  2. Kang Yong Lee
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  3. Fei-Xiang Feng
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Correspondence to Kang Yong Lee.

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Li, YD., Lee, K.Y. & Feng, FX. Interface edge crack in a multiferroic semicylinder. Meccanica 46, 1393–1399 (2011). https://doi.org/10.1007/s11012-010-9399-4

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  • DOI: https://doi.org/10.1007/s11012-010-9399-4

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