Love-type wave propagation in a hydrostatic stressed magneto-elastic transversely isotropic strip over an inhomogeneous substrate caused by a disturbance point source

被引:19
作者
Alam, Parvez [1 ]
Kundu, Santimoy [1 ]
Gupta, Shishir [1 ]
机构
[1] Indian Inst Technol Indian Sch Mines, Dept Appl Math, Dhanbad 826004, Jharkhand, India
关键词
Love-type wave; beryl; magnesium; cadmium; zinc; cobalt; magneto-elastic coupling; Green's function; Fourier transform; Maxwell's equation; INITIAL STRESS; SURFACE-WAVES; POROUS-MEDIUM; HALF-SPACE; SH-WAVES; INTERFACE; LIQUID; PLANE; MEDIA; FIELD;
D O I
10.1177/1045389X18770877
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Propagation of Love-type waves emanating due to a disturbance point source in a transversely isotropic layer of finite thickness laid over a semi-infinite half-space is investigated. The layer is assumed under the influence of magnetic field and hydrostatic state of stress, while the half-space is inhomogeneous. The source point is situated at the common interface of the layer and half-space. Maxwell's equation and generalized Ohm's law have been taken into account to calculate the Laurent force induced in the layer. Green's function technique and Fourier transform are used as a powerful tool to calculate the interior deformations of the model; consequently, we obtain a closed-form dispersion relation for the wave. Six numerical examples for the transversely isotropic layer, namely, beryl, magnesium, cadmium, zinc, cobalt, and simply isotropic, have been considered. The role of magneto-elastic coupling parameter, hydrostatic stress, inhomogeneity, the order of the depth variation in inhomogeneity function, and different examples of the layer on the propagation of Love-type wave has been observed by numerical examples and graphical demonstrations.
引用
收藏
页码:2508 / 2521
页数:14
相关论文
共 24 条
[1]   SV-waves incidence at interface between solid-liquid media under electromagnetic field and initial stress in the context of three thermoelastic theories [J].
Abd-Alla, A. M. ;
Abo-Dahab, S. M. ;
Kilany, A. A. .
JOURNAL OF THERMAL STRESSES, 2016, 39 (08) :960-976
[2]  
Abo-Dahab SM, 2016, MECH ADV MATER STRUC, V25, P319
[3]   Effect of magnetic field and initial stress on the propagation of interface waves in transversely isotropic perfectly conducting media [J].
Acharya, D. P. ;
Roy, I. ;
Sengupta, S. .
ACTA MECHANICA, 2009, 202 (1-4) :35-45
[4]  
Biot MA, 1965, Mechanics of incremental deformations
[5]   ELASTICITY AND CONSTITUTION OF THE EARTH INTERIOR [J].
BIRCH, F .
JOURNAL OF GEOPHYSICAL RESEARCH, 1952, 57 (02) :227-286
[6]  
Bullen K.E., 1940, B SEISMOL SOC AM, V30, P235, DOI [10.1785/BSSA0300030235, DOI 10.1785/BSSA0300030235]
[7]   On love-type magnetoelastic surface waves [J].
Chakraborty, S ;
Chattopadhyay, M .
JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 1998, 65 (02) :535-539
[8]   Green's function for SH-waves in inhomogeneous anisotropic elastic solid with power-function velocity variation [J].
Daros, C. H. .
WAVE MOTION, 2013, 50 (02) :101-110
[9]   A MATHEMATICAL-MODEL FOR THE MOVEMENT OF A CONDUCTING LIQUID THROUGH A CONDUCTING POROUS-MEDIUM [J].
DOROVSKY, VN ;
IMOMNAZAROV, KK .
MATHEMATICAL AND COMPUTER MODELLING, 1994, 20 (07) :91-97
[10]  
Ewing W.M., 1957, ELASTIC WAVES LAYERE