THERMAL SCIENCE
International Scientific Journal
MAGNETIC FIELD ON SURFACE WAVES PROPAGATION IN GRAVITATIONAL THERMOELASTIC MEDIA WITH TWO TEMPERATURE AND INITIAL STRESS IN THE CONTEXT OF THREE THEORIES
ABSTRACT
In this paper is investigating the theory of generalized thermoelasticity under two temperature is used to solve boundary value problems of 2-D half-space its boundary with different types of heating under gravity effect. The governing equations are solved using new mathematical methods under the context of Lord-Shulman, Green-Naghdi theory of type III (G-N III) and the three-phase-lag model to investigate the surface waves in an isotropic elastic medium subjected to gravity field, magnetic field, and initial stress. The general solution obtained is applied to a specific problem of a half-space and the interaction with each other under the influence of gravity. The physical domain by using the harmonic vibrations is used to obtain the exact expressions for the Waves velocity and attenuation coefficients for Stoneley waves, Love waves, and Rayleigh waves. Comparisons are made with the results between the three theories. Numerical work is also performed for a suitable material with the aim of illustrating the results. The results obtained are calculated numerically and presented graphically with some comparisons in the absence and the presence the influence of gravity, initial stress and magnetic field. It clears that the results obtained agree with the physical practical results and agree with the previous results if the gravity, two temperature, and initial stress neglect as special case from this study.
KEYWORDS
PAPER SUBMITTED: 2020-04-27
PAPER REVISED: 2020-06-10
PAPER ACCEPTED: 2020-06-26
PUBLISHED ONLINE: 2020-10-25
THERMAL SCIENCE YEAR
2020, VOLUME
24, ISSUE
Supplement 1, PAGES [S285 - S299]
- Biot, M. A., Thermoclasticity and Irreversible Thermodynamics, Journal Appl. Phys., 27 (1956), 3, pp. 240-253
- Lord, H. W., Shulman, Y., A Generalized Dynamical Theory of Thermoelasticity, Journal Mech. Phys. Solids, 15 (1967), 5, pp. 299-306
- Green, A. E., Lindsay, K. A., Thermoelasticity, Journal Elasticity, 2 (1972), pp. 1-7
- Chandrasekharaiah, D. S., et al., Thermoelastic Interactions Without Energy Dissipation Due to a Point Heat Source, Journal Elasticity, 50 (1998), Feb., pp. 97-108
- Chandrasekharaiah, D. S., et al., Temperature-Rate-Dependent Thermo-Elastic Interactions Due to a Line Heat Source, Acta Mech., 89 (1991), Mar., pp. 1-12
- Amin, M. M., et al., Propagation of Surface Waves in Generallized Thermoelastic Media under Influence of Magnetic Field and Rotation and its Applications in Engineering and Geophysics, Mechanics Based Design of Structures and Machines, On-line first, doi.org/10.1080/15397734.2020.1804934, 2020
- Nayfeh, A., Nemat-Nasser, S., Transient Thermoelastic Waves in Half-space with Thermal Relaxation, ZAMP, 23 (1972), 1, pp. 52-68
- Ezzat, M., et al., Electromagneto-Thermoelastic Plane Waves with Thermal Relaxation in a Medium of Perfect Conductivity, Journal Thermal Stresses, 24 (2001), 5, pp. 411-432
- Youssef, H. M., El-Bary, A. A., Mathematical Model for Thermal Shock Problem of a Generalized Thermoelastic Layered Composite Material with Variable Thermal Conductivity, Com., Meth., in Sci., and Tech., 12 (2006), 2, pp. 165- 171
- Chen, P. J., Gurtin, M. E., On a Theory of Heat Conduction Involving Two Temperatures, ZAMP, 19 (1968), July, pp. 614-627
- Youssef, H. M., Theory of Two-Temperature-Generalized Thermoelasticity, IMA Journal of Applied Mathematics, 71 (2006), 3, pp. 383-390
- Abouelregal, A. E., Abo-Dahab, S. M., Dual Phase Lag Model on Magneto-Thermoelasticity Infinite Non-Homogeneous Solid Having a Spherical Cavity, Journal Thermal Stresses, 35 (2012), 9, pp. 820-84
- Love, A. E. H., Some Problems of Geodynamics, Dover Publishing Inc., New York, USA, 1911
- De, S. N., Sengupta, P. R., Influence of Gravity on Wave Propagation in an Elastic Layer, Journal Acoust. Soc. Am., 55 (1974), 5, pp. 919-921
- De, S. N., Sengupta, P. R., Surface Waves under the Influence of Gravity, Garlands, Beitr. Geophys., 85 (1976), pp. 311-318
- Sengupta, P. R., Acharya, D., The Influence of Gravity on the Propagation of Waves in a Thermoelastic Layer, Rev. Roum. Sci. Technol. Mech. Appl., Tome, 24 (1979), pp. 395-406
- Das, S. C., et al., Surface Waves in an Inhomogeneous Elastic Medium under the Influence of Gravity, Rev. Roum. Des. Sci. Tech., 37 (1992), 5, pp. 539-551
- Abd-Alla, A. M., Ahmed, S., Stoneley and Rayleigh Waves in a Non-Homogeneous Orthotropic Elastic Medium under the Influence of Gravity, Appl. Math. Comput., 135 (2003), 1, pp. 187-200
- Abd-Alla, A. M., Influences of Rotation, Magnetic Field, Initial Stress and Gravity on Rayleigh Waves in a Homogeneous Orthotropic Elastic Half-Space, Appl. Math. Sci., 4 (2010), 2, pp. 91-108
- Othman, M. I. A., et al., Gravitational Effect and Initial Stress on Generalized Magneto-Thermo-Microstretch Elastic Solid for Different Theories, Appl. Math. and Comp., 230 (2014), Mar., pp. 597-615
- Lotfy, K. H., Two Temperature Generalized Magneto-Thermoelastic Interactions in an Elastic Medium under Three Theories, Appl. Math. Comp., 227 (2014), C, pp. 871-888
- Lotfy, K. H., Hassan, W., Normal Mode Method for Two-Temperature Generalized Thermoelasticity under Thermal Shock Problem, Journal of Thermal Stresses, 37 (2014), 5, pp. 545-560
- Lotfy, K. H., Abo-Dahab, S. M., The 2-D Problem of Two Temperature Generalized Thermoelasticity with Normal Mode Analysis under Thermal Shock Problem, Journal Comp.Theoretical Nanoscience, 12 (2015), 8, pp. 1709-1719.
- Lotfy, K. H., Abo-Dahab, S. M., Generalized Magneto-Thermoelasticity with Fractional Derivative Heat Transfer for a Rotation of a Fibre-reinforced Thermoelastic, Journal Comp.Theoretical Nanoscience, 12 (2015), 8, pp. 1869-1881
- Abo-Dahab, S. M., Surface Waves in Coupled and Generalized Thermoelasticity, Advances in Materials and Corrosion, 2 (2013), 1, pp. 46-53
- Abo-Dahab, S. M., TheGL Model on Propagation of Surface Waves in Magneto-thermoelastic Materials with Voids and Initial Stress, Journal Comput. and Theoret.Nanoscience, 11 (2014), 3, pp. 763-771
- Abo-Dahab, S. M., et al., Rotation, Magnetic Field and Stiffness Effect on Propagation of Surface Waves in an Elastic Layer Lying over a Generalized Thermo-Elasticdiffusive Half-Space with Imperfect Boundary, Mathematical Problems in Engineering, 2015 (2015), ID671783
- Abd-Alla, A. M., et al., Effect of Several Fields on a Generalized Thermoelastic Medium with Voids in the Context of Lord-Shulman or Dual-Phase-Lag Models, Mechanics Based Design of Structures and Machines, On-line first, doi.org/10.1080/15397734.2020.1823852, 2020