scholarly journals The effect of a laser pulse and gravity field on a thermoelastic medium under Green–Naghdi theory

2016 ◽  
Vol 227 (12) ◽  
pp. 3571-3583 ◽  
Author(s):  
Mohamed I. A. Othman ◽  
Ramadan S. Tantawi
Keyword(s):  
Laser Pulse ◽  
Gravity Field ◽  
Thermoelastic Medium

Thermoelastic medium in the context of four theories subjected to gravity field and laser pulse

2021 ◽  
pp. 1-22
Author(s):  
Fatimah S. Bayones ◽  
A. M. Abd-Alla ◽  
S. M. Abo-Dahab ◽  
Abdelkalk J. Alqarni ◽  
Althobaiti Saad
Keyword(s):  
Laser Pulse ◽  
Gravity Field ◽  
Thermoelastic Medium

Propagation of plane waves of magneto-thermoelastic medium with voids influenced by the gravity and laser pulse under G-N theory

2016 ◽  
Vol 12 (2) ◽  
pp. 326-344 ◽  
Author(s):  
Mohamed Ibrahim A Othman ◽  
Mohamed I. M. Hilal
Keyword(s):  
Magnetic Fields ◽  
Laser Pulse ◽  
Pulse Heating ◽  
Volume Fraction ◽  
Plane Waves ◽  
Mode Analysis ◽  
Thermoelastic Medium ◽  
Content Type ◽  
Thermoelastic Material ◽  
Laser Pulse Heating

Purpose – The purpose of this paper is to investigate the influence of the gravity and the magnetic fields on the plane waves in a homogenous, linear and isotropic thermoelastic medium subjected to the laser pulse heating. Design/methodology/approach – The problem has been solved analytically and numerically by using the normal mode analysis. Findings – Numerical results for the temperature, the displacement components, the stress components and the volume fraction were presented graphically and analyzed the results. The graphical results indicate that the effect of gravity and magnetic fields are observable physical effects on the porous thermoelastic material heated by a laser pulse. Comparisons are made with the results in the absence and presence of the gravity and the magnetic fields, also at various times. Originality/value – In the present work, the authors shall formulate a 2-D problem for the propagation of plane waves on the porous thermoelastic material influenced by the gravity and the magnetic fields subjected to a laser pulse heating act as a thermal shock. A comparison is also made between the two types II and III of Green-Naghdi theory in the absence and the presence of the gravity and the magnetic fields. Such problems are very important in many dynamical systems.

scholarly journals Fibre-Reinforced Generalized Thermoelastic Medium Subjected to Gravity Field

2015 ◽  
Vol 06 (08) ◽  
pp. 1113-1134 ◽  
Author(s):  
Fatimah S. Bayones ◽  
Nahed S. Hussien
Keyword(s):  
Gravity Field ◽  
Thermoelastic Medium ◽  
Generalized Thermoelastic

scholarly journals Elastodynamical disturbances due to laser irradiation in a microstretch thermoelastic medium with microtemperatures

2019 ◽  
Vol 23 (1) ◽  
pp. 103-112
Author(s):  
Arvind Kumar ◽  
Devinder Singh
Keyword(s):  
Mathematical Model ◽  
Laser Pulse ◽  
Heat Source ◽  
Normal Stress ◽  
Laser Irradiation ◽  
Normal Modes ◽  
Thermoelastic Medium ◽  
Mathematical Expressions ◽  
Tangential Forces ◽  
Mechanical Disturbances

Abstract This research is concerned with the study of mechanical disturbances due to presence of ultra-short laser pulse as input heat source in a microstretch thermoelastic medium with microtemperatures. The medium is subjected to normal and tangential forces. The solution of the problems is developed in terms of normal modes. Mathematical expressions have been obtained for normal stress, tangential stress, microstress and temperature change. The numerically computed results are shown graphically. A mathematical model has been developed and various stress quantities have been analyzed. Some particular cases are also derived from the present investigation.

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