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This paper is concerned
with the study of vibrations induced by a laser beam in the context of generalized
magnetothermoelasticity. The basic governing equations for isotropic and
homogeneous elastic solids are formulated under Green–Naghdi theory in the x-z
plane. The temporal profile of the laser beam is considered as non-Gaussian. The
governing nondimensional equations are solved using normal mode analysis. The
obtained solution is then applied to two specific problems in the half-space, where the
boundary is subjected to either a mechanical or thermal load. Numerical
computations are performed for a specific model to calculate the displacement,
temperature, and stress fields and the results are displayed. The effects of time and
magnetic field on the variation of different field quantities are analyzed in the
figures.
Keywords
G-N theory, magnetic field, laser pulse, normal mode
analysis