Magnetoelastic shear waves in an infinite self-reinforced plate

✍ Scribed by A. Chattopadhyay; S. Choudhury

• Publisher: John Wiley and Sons
• Year: 1995
• Tongue: English
• Weight: 539 KB
• Volume: 19
• Category: Article
• ISSN: 0363-9061
• DOI: 10.1002/nag.1610190405

✦ Synopsis

The propagation of magnetoelastic shear waves in an infinite self-reinforced plate is studied in this paper. The frequency spectrum for SH-modes in the plate is drawn and it is shown that if the dimensionless wave number is real, the branches are hyperbolas while for imaginary wave numbers, they are ellipses. It is also observed that for higher modes, the dimensionless group velocity approaches 9.9754 as the wave number increases. The group velocity is normalized with respect to the phase velocity of shear waves.

For a homogeneous and isotropic medium, on the other hand, the dimensionless group velocity approaches unity. So it is approximately 10 times larger in case of magnetoelastic shear waves in an infinite self-reinforced plate.

It is also noted that in a reinforced medium, if both the values of the coupling parameter and the angle at which the wave crosses the primary magnetic field are increased, the values of the dimensionless frequency and group velocity are decreased.