Plane waves and eigenfrequency study in a transversely isotropic magneto-thermoelastic medium under the effect of a constant angular velocity

被引:22
作者
Abd-alla, Abo-el-nour N. [1 ,2 ]
Alshaikh, Fatimah [2 ]
Del Vescovo, Dionisio [3 ,4 ]
Spagnuolo, Mario [4 ,5 ]
机构
[1] Jazan Univ, Dept Math, Fac Sci, Jazan, Saudi Arabia
[2] Sohag Univ, Dept Math, Fac Sci, Sohag, Egypt
[3] Univ Roma La Sapienza, Dipartimento Ingn Meccan & Aerospaziale, Rome, Italy
[4] Univ Aquila, Int Res Ctr Math & Mech Complex Syst M&MOCS, I-67100 Laquila, Italy
[5] Univ Paris 13, LSPM, Paris, France
关键词
Cobalt material; eigenfrequency study; Green-Lindsay theory; magneto-thermoelasticity; plane waves; ELASTIC HALF-SPACE; GENERALIZED THERMOELASTICITY; POLYCRYSTALLINE MATERIALS; SURFACE-WAVES; REFLECTION; BEHAVIOR; SOLIDS;
D O I
10.1080/01495739.2017.1334528
中图分类号
O414.1 [热力学];
学科分类号
摘要
In this article, we investigate the influence of (i) relaxation times according to the theory of Green-Lindsay, (ii) rotation, and (iii) magnetic field on incident and reflected plane waves in a transversely isotropic magneto-thermoelastic medium. We moreover make a numerical study to analyze the amplitude ratios for incident plane waves and a numerical eigenfrequency study presenting some shape modes for the displacement and temperature fields of a physical suitable cylindrical system. The medium rotates with a constant angular velocity, in the presence of a magnetic field orthogonal to the stress-free and thermally insulated plane. We solve the equations of this system and show the arising of three quasi-plane waves in the medium. The theoretical aspects of this article are focused on the reflection of these qp-waves from one of the surfaces of the medium, which we impose to be stress-free and thermally insulated: We obtain the reflection coefficients by numerical simulations considering a cylinder of cobalt.
引用
收藏
页码:1079 / 1092
页数:14
相关论文
共 35 条
[1]   Generalized Magneto-thermoelasticity in a Fiber-Reinforced Anisotropic Half-Space [J].
Abbas, Ibrahim A. ;
Abd-alla, Abo-el-nour N. ;
Othman, Mohamed I. A. .
INTERNATIONAL JOURNAL OF THERMOPHYSICS, 2011, 32 (05) :1071-1085
[2]   The reflection phenomena of quasi-vertical transverse waves in piezoelectric medium under initial stresses [J].
Abd-alla, Abo-el-nour N. ;
Al-sheikh, Fatimah A. ;
Al-Hossain, Abdullah Y. .
MECCANICA, 2012, 47 (03) :731-744
[3]   The Mathematical Model of Reflection and Refraction of Plane Quasi-Vertical Transverse Waves at Interface Nano-Composite Smart Material [J].
Abd-alla, Abo-el-nour N. ;
Al-Hossain, Abdullah Y. ;
Farhoud, Faruk A. ;
Ibrahim, Medhat .
JOURNAL OF COMPUTATIONAL AND THEORETICAL NANOSCIENCE, 2011, 8 (07) :1193-1202
[4]   On the reflection of the generalized magneto-thermo-viscoelastic plane waves [J].
Abd-alla, AN ;
Yahia, AA ;
Abo-dahab, SM .
CHAOS SOLITONS & FRACTALS, 2003, 16 (02) :211-231
[5]   Thermo-mechanical buckling behavior of functionally graded microbeams embedded in elastic medium [J].
Akgoz, Bekir ;
Civalek, Omer .
INTERNATIONAL JOURNAL OF ENGINEERING SCIENCE, 2014, 85 :90-104
[6]   Acceleration waves and ellipticity in thermoelastic micropolar media [J].
Altenbach, Holm ;
Eremeyev, Victor A. ;
Lebedev, Leonid P. ;
Rendon, Leonardo A. .
ARCHIVE OF APPLIED MECHANICS, 2010, 80 (03) :217-227
[7]   Some theorems in the generalized theory of thermo-magnetoelectroelasticity under Green-Lindsay's model [J].
Aouadi, M. .
ACTA MECHANICA, 2008, 200 (1-2) :25-43
[8]   Interfaces in micromorphic materials: Wave transmission and reflection with numerical simulations [J].
Berezovski, Arkadi ;
Giorgio, Ivan ;
Della Corte, Alessandro .
MATHEMATICS AND MECHANICS OF SOLIDS, 2016, 21 (01) :37-51
[9]  
CATTANEO C, 1958, CR HEBD ACAD SCI, V247, P431
[10]   Thermoelastic surface waves on an exponentially graded half-space [J].
Chirita, Stan .
MECHANICS RESEARCH COMMUNICATIONS, 2013, 49 :27-35