Structural Engineering and Mechanics

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Comparative study of torsional wave profiles through stratified media with fluted boundaries

  • Maity, Manisha (Department of Mathematics and Computing, Indian Institute of Technology (Indian School of Mines) Dhanbad) ;
  • Kundu, Santimoy (Department of Mathematics and Computing, Indian Institute of Technology (Indian School of Mines) Dhanbad) ;
  • Kumari, Alka (Department of Mathematics and Computing, Indian Institute of Technology (Indian School of Mines) Dhanbad) ;
  • Gupta, Shishir (Department of Mathematics and Computing, Indian Institute of Technology (Indian School of Mines) Dhanbad)
  • Received : 2019.03.11
  • Accepted : 2019.11.12
  • Published : 2020.04.10
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Abstract

A mathematical analysis has been carried out for understanding the traversal attributes of torsional waves in a Voigt-type viscoelastic porous layer bounded with corrugated surfaces resting over a heterogeneous transversely isotropic gravitating semi-infinite medium. Both the media are assumed to be under the effect of initial stresses acting along horizontal directions. In the presumed geometry, continuous and periodic type of corrugation has been considered. The condensed form of dispersion relation has been obtained analytically with the aid of the Whittaker's function and suitable boundary conditions. The influence of viscoelasticity, porosity, initial stresses, heterogeneity, gravity, undulation and position parameters on the phase and damped velocities has been illustrated graphically. In addition, relative examination investigating the impact of corrugated and planar bounded surfaces on the dispersion and damping characteristics is one of the important highlights of this study.

Keywords

Acknowledgement

The authors wish to convey their sincere gratitude to IIT (ISM), Dhanbad, Jharkhand-826004, India, for providing financial support and necessary facilities to Ms. Manisha Maity (IIT(ISM)-JRF) for research work.

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