Changes in Micropolar Thermoelastic Behavior in the 3PHL Framework due to Rotation and Nonlocality

Abstract The main objective of this paper is to explore the effect of the nonlocal parameter on a two-dimensional micropolar thermoelastic isotropic rotating medium using the three-phase-lag (3PHL) framework. Through application of normal mode method, exact expressions for the temperature, microrotation, displacement, stress components have been obtained. Numerical solutions for these physical quantities were calculated and visually represented with MATLAB 2013, taking into account the material characteristics of magnesium crystal. The study's findings shed important light on how nonlocal thermoelastic media behave with the combined influence of micro-polarity and rotation, which could lead to improvements in material design and performance for various applications. The findings reveal significant differences between three theories, particularly with or without of the nonlocal parameter and different angular velocity values. Additionally, under rotational influence, the predictions made by the 3PHL model tend to fall between the results from the theories of L-S and G-N III.