Memory-dependent derivatives (MDD) of magneto-thermal-elastic waves excited by laser pulses for two-temperature theory. Issue 5 (3rd September 2022)

• Record Type: Journal Article
• Authors: Lotfy, Kh.; El-Bary, A. A.; Sarkar, N.
• Is Part Of: Waves in random and complex media. Volume 32:Issue 5(2022)
• Page Start: 2177
• Page End: 2196
• Publication Date: 2022-09-03
• Subjects: Magneto-thermoelasticity -- memory-depended derivative -- two-temperature -- laser pulse -- Laplace transform; Electromagnetic waves -- Periodicals; Electromagnetic waves -- Scattering -- Periodicals; 531.1133
• DOI: 10.1080/17455030.2020.1847360
• Languages: English
• ISSNs: 1745-5030

Abstract

ABSTRACT: A novel model of the generalized magneto-thermoelasticity with two-temperature theory is investigated. The memory-depended derivative (MDD) during the excitation processes by pulsed laser is established for a time-dependent material. The overlapping between an isotropic homogeneous thermoelastic half-space medium and the non-Gaussian laser pulse in one-dimensional space with time delay is obtained. The semi-infinite bounding surface of the elastic medium is taken as traction free and subject to a thermal shock problem in a time-dependent case. Laplace transformation technique is used to obtain the initial solutions of the main physical field which defined in the governing equations. The temporal complete solutions in Laplace time domain obtained by using the inversion method of the Laplace transform, to obtain the general solution (exact solution) for some physical quantities. Numerical results are performed with discussed for suitable elastic medium and illustrated graphically, taken into consideration the time-delay parameters.