Thermal shock problem for a fiber-reinforced anisotropic half-space placed in a magnetic field via G-N model

2014 ◽  
Vol 246 ◽  
pp. 482-490 ◽  
Author(s):  
Ashraf M. Zenkour ◽  
Ibrahim A. Abbas
Keyword(s):  
Magnetic Field ◽  
Thermal Shock ◽  
Half Space ◽  
Fiber Reinforced ◽  
Thermal Shock Problem

scholarly journals Effect of Variable Thermal Conductivity on the Generalized Thermoelasticity Problems in a Fiber-Reinforced Anisotropic Half-Space

2019 ◽  
Vol 2019 ◽  
pp. 1-9
Author(s):  
Chun-Bao Xiong ◽  
Li-Na Yu ◽  
Yan-Bo Niu
Keyword(s):  
Thermal Conductivity ◽  
Thermal Shock ◽  
Half Space ◽  
Generalized Thermoelasticity ◽  
Variable Thermal Conductivity ◽  
Effect Of Temperature ◽  
Fiber Reinforced ◽  
Fiber Reinforced Materials ◽  
The Time Domain ◽  
Transient Thermal

Fiber-reinforced materials have widespread applications, which prompt the study of the effect of fiber reinforcement. Research studies have indicated that thermal conductivity cannot be considered as a constant, which is closely related to temperature change. Based on those studies, we investigate the fiber-reinforced generalized thermoelasticity problem under thermal stress, with the consideration of the effect of temperature-dependent variable thermal conductivity. The problem is assessed according to the L-S theory. A fiber-reinforced anisotropic half-space is selected as the research model, and a region of its surface is subjected to a transient thermal shock. The time-domain finite element method is applied to analyze the nonlinear problem and derives the governing equations. The nondimensional displacement, stress, and temperature of the material are obtained and illustrated graphically. The numerical results reveal that the variable conductivity significantly influences the distribution of the field quantities under the fiber-reinforced effect. And also, the boundary point of thermal shock is the most affected. The obtained results in this paper can be applied to design the fiber-reinforced anisotropic composites under thermal load to satisfy some particular engineering requirements.

scholarly journals Magneto-thermoelastic waves induced by a thermal shock in a finitely conducting elastic half space

1996 ◽  
Vol 19 (1) ◽  
pp. 131-143 ◽  
Author(s):  
S. K. Roychoudhuri ◽  
Santwana Banerjee (Mukhopadhyay)
Keyword(s):  
Magnetic Field ◽  
Thermal Shock ◽  
Half Space ◽  
Normal Load ◽  
Elastic Half Space ◽  
Thermal Fields ◽  
Sound Effects ◽  
Short Time ◽  
Thermoelastic Waves ◽  
Perturbed Magnetic Field

The propagation of magneto-thermoelastic disturbances produced by a thermal shock in a finitely conducting elastic half-space in contact with vacuum is investigated. The boundary of the half-space is subjected to a normal load. Lord-Shulman theory of thermoelasticity [1] is used to account for the interaction between the elastic and thermal fields. Laplace transform on time is used to obtain the short-time approximations of the solutions because of the short duration of 'second sound' effects. It is found that in the half-space the displacement is continuous at the modified dilational and thermal wavefronts, whereas the perturbed magnetic field, stress and the temperature suffer discontinuities at these locations. The perturbed magnetic field, is, however, discontinuous at the Alf'ven-acoustic wavefront in vacuum.

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