scholarly journals Rotational and voids effect on the reflection of P waves from stress-free surface of an elastic half-space under magnetic field and initial stress without energy dissipation

2013 ◽  
Vol 37 (20-21) ◽  
pp. 8999-9011 ◽  
Author(s):  
S.M. Abo-Dahab ◽  
Baljeet Singh
Keyword(s):  
Magnetic Field ◽  
Free Surface ◽  
Energy Dissipation ◽  
Initial Stress ◽  
Half Space ◽  
Elastic Half Space ◽  
P Waves ◽  
Without Energy Dissipation

scholarly journals Effects of a magnetic field and initial stress on reflection of SV-waves at a free surface with voids under gravity

2018 ◽  
Vol 27 (5-6) ◽  
Author(s):  
Augustine Igwebuike Anya ◽  
M.W. Akhtar ◽  
Syed Muhammad Abo-Dahab ◽  
Hajra Kaneez ◽  
Aftab Khan ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Free Surface ◽  
Magnetic Fields ◽  
Initial Stress ◽  
Half Space ◽  
Significant Role ◽  
Elastic Half Space ◽  
Wave Incident ◽  
P Waves

AbstractThe present study deals with the reflection of SV-waves at a free surface in the presence of magnetic field, initial stress, voids and gravity. When an SV-wave incident on the free surface of an elastic half space, two damped P-waves and an SV-wave are reflected. Among these waves, P-waves are only affected by magnetic fields whereas SV-waves are influenced by both, initial stress and magnetic fields. Effect of gravity is negligible whereas voids played a significant role. These observations can be helpful for seismology and earthquake sciences.

Magneto-elastic SV-wave at the interface of pre-stressed surface with voids under rotation

2016 ◽  
Vol 25 (5-6) ◽  
pp. 153-160
Author(s):  
Rajneesh Kakar ◽  
Shikha Kakar
Keyword(s):  
Magnetic Field ◽  
Free Surface ◽  
Initial Stress ◽  
Seismic Waves ◽  
Elastic Half Space ◽  
Amplitude Ratios ◽  
P Waves ◽  
Stress Rotation ◽  
Acoustic Device ◽  
Stressed Surface

AbstractThe aim of this paper is to study the behaviour of reflection of SV- wave at a free surface under the effects of magnetic field, initial stress, rotation and voids. When a SV- wave is incident on the free surface of an elastic half space, two damped P-waves and a SV-wave is reflected. Among of these waves, P-waves are only affected by magnetic field and rotation whereas SV-wave is influenced by rotation, initial stress and magnetic field. Numerical computations are performed for the developed amplitude ratios of P-, SV- and magneto-elastic waves. This study would be useful for magneto-elastic acoustic device field and further study about nature of seismic waves.

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