Micropolar viscoelastic nanostructures subjected to laser-induced heat flux using the modified higher-order thermoelasticity model incorporating phase delay effects

The gap between classical continuity and nanomechanics can be bridged using the concept of nonlocal elasticity. The Voigt viscoelastic model and the generalized dual-phase thermoelastic micropolar framework (DPL) are considered. Also, higher-order time derivatives with a two-phase delay are included in the heat transfer equation to generalize the proposed model. The mechanical and viscoelastic properties of suspensions, colloidal liquids, concretes, etc., can be described by applying the suggested model. As an example of using the proposed model, the effect of the pulsed heat transfer rate on the thermoelastic micropolar half-space was investigated. The analytical formulas for deformation, nonlocal thermal stress, and temperature change were derived after solving the governing equations using the Laplace transform technique. The graphical representation of numerical simulation results has been utilized to illustrate the effects of micropolarity, higher-order phenomena, phase delay, nonlocal index, and viscosity variables on a given distance. In this specific instance, the conclusions drawn from this analysis also incorporated the results of previously conducted research.