Rayleigh waves in isotropic microstretch thermoelastic diffusion solid half space

• Main Authors: Rajneesh Kumar, Sanjeev Ahuja, S.K. Garg
• Format: Article
• Language: English
• Published: Marcílio Alves
• Series: Latin American Journal of Solids and Structures
• Subjects: Rayleigh waves; Frequency equation; Phase velocity; Attenuation coefficient; Microstretch
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-78252014000200009&lng=en&tlng=en

This paper is devoted to the study of propagation of Rayleigh waves in a homogeneous isotropic microstretch generalized thermoelastic diffusion solid half-space. Secular equations in mathematical conditions for Rayleigh wave propagation are derived for stress free, insulated/impermeable and isothermal/isoconcentrated boundaries. The phase velocity, attenuation coefficient, the components of normal stress, tangential stress, tangential couple stress, microstress, temperature change and mass concentration are computed numerically. The path of surface particles is also obtained for the propagation of Rayleigh waves. The computationally stimulated results for the resulting quantities are represented to show the effect of thermally insulated, impermeable boundaries and isothermal, isoconcentrated boundaries alongwith the relaxation times. Some particular cases have also been deduced from the present investigation.