Journal of Mechanical Science and Technology

  • 제15권1호
  • /
  • Pages.21-25
  • /
  • 2001
  • /
  • 1738-494X(pISSN)
  • /
  • 1976-3824(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지

Eccentric Crack in a Piezoelectric Strip Under Electro-Mechanical Loading

  • Lee, Kang-Yong (Professor in Department of Mechanical Engineering, Yonsei University) ;
  • Shin, Jeong-Woo (Graduate school, Department of Mechanical Engineering, Yonsei University) ;
  • Kwon, Soon-Man (Graduate school, Department of Mechanical Engineering, Yonsei University)
  • 발행 : 2001.01.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

We consider the problem of determining the singular stresses and electric fields in a piezoelectric ceramic strip containing a Griffith eccentric crack off the center line under anti-plane shear loading with the theory of linear piezoelectricity. Fourier transforms are used to reduce the problem to the solution of two pairs of dual integral equations, which are then expressed to a Fredholm integral equation of the second kind. Numerical values on the stress intensity factor and the energy release rate are obtained, and the influences of the electric fields for piezoelectric ceramics are discussed.

키워드

참고문헌

  1. Chen, Z. T. and Yu, S. W., 1997, 'Antiplane Shear Problem for a Crack Between Two Dissimilar Piezoelectric Materials,' Int. J. Fract, Vol. 86, pp. L9-L12
  2. Gao C. F. and Fan W. X., 1999, 'A General Solution for the Plane Problem in Piezoelectric Media with Collinear Crack,' Int. J. Eng. Sci., Vol. 37, pp. 347-363 https://doi.org/10.1016/S0020-7225(98)00067-6
  3. kwon, S. M.; and ee, K. Y., 2000, 'Analysis of Stress and Electric Fields in a Rectangular Piezoelectric Body with a Center Crack Under Anti-Plane Shear Loading,' Int. J. Solids Struct., Vol. 37, pp. 4859-4869 https://doi.org/10.1016/S0020-7683(99)00186-9
  4. Pak, Y. E., 1990, 'Crack Extension Force in a Piezoelectric Material,' ASME, J. Appl. Mech. Vol. 57, pp. 647-653
  5. Shindo, Y. et al., 1997, 'Singular Stress and Electric Fields of a Piezoelectric Ceramic Strip with a Finite Crack Under Longitudinal Shear,' Acta Mech. Vol. 120, pp. 31-45 https://doi.org/10.1007/BF01174314