Interaction and multiscale mechanics

  • 제6권1호
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  • Pages.1-14
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  • 2013
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  • 1976-0426(pISSN)
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  • 2092-6200(eISSN)
테크노프레스 (Techno-Press)
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Torsional surface waves in a non-homogeneous isotropic layer over viscoelastic half-space

  • 투고 : 2012.06.11
  • 심사 : 2012.11.30
  • 발행 : 2013.03.25
⟨ 이전 논문 다음 논문 ⟩

초록

The aim of this paper is to study the propagation of torsional surface waves in non-homogeneous isotropic layer of finite thickness placed over a homogeneous viscoelastic half-space, when both density and rigidity of the non-homogeneous medium are assumed to vary exponentially with depth. The frequency equations are obtained by using simple method of separation of variables. Further, it is seen that when viscoelastic parameter and non-homogeneity parameter is neglected, the dispersion equation gives the dispersion equations of Love waves in homogeneous, elastic and isotropic layer placed over homogeneous viscoelastic medium. The problem has been solved numerically and the effects of various inhomogeneities of the medium on torsional waves have been illustrated graphically.

키워드

참고문헌

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  1. Influence of impulsive line source and non-homogeneity on the propagation of SH-wave in an isotropic medium vol.6, pp.3, 2013, https://doi.org/10.12989/imm.2013.6.3.287
  2. Magneto-electro-viscoelastic torsional waves in aeolotropic tube under initial compression stress vol.11, pp.4, 2014, https://doi.org/10.1590/S1679-78252014000400002
  3. Torsional wave in an inhomogeneous prestressed elastic layer overlying an inhomogeneous elastic half-space under the effect of rigid boundary vol.9, pp.4, 2015, https://doi.org/10.12989/eas.2015.9.4.753
  4. Torsional waves in a magneto-viscoelastic layer over an inhomogeneous substratum vol.131, pp.8, 2016, https://doi.org/10.1140/epjp/i2016-16263-7
  5. Electro-magneto-thermoelastic surface waves in non-homogeneous orthotropic granular half space vol.7, pp.1, 2014, https://doi.org/10.12989/gae.2014.7.1.001