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<p>Non-local continuum theory is key to understanding material point interactions, emphasizing size-dependent effects in heat conduction to enhance microscopic-macroscopic interactions. This study develops a generalized thermoelasticity model integrating a two-temperature framework with nonlocal heat conduction and dual-phase-lag effects. A nonlocal thermal length-scale parameter captures size-dependent thermal interactions. The model investigates planar wave propagation in a homogeneous micropolar linear thermoelastic medium rotating at constant angular velocity, with a stationary coordinate system. Using specific boundary conditions and the normal mode method, we analyze variations in temperature, displacement, micro-rotation, coupling, and thermal stresses due to heating. Modified governing equations, solved via the normal mode approach, reveal how nonlocal thermal parameters, rotation, and two-temperature factors affect these physical quantities. The findings underscore the significant influence of polymer microstructure thermal properties on small-scale dynamics and memory-dependent behaviors, offering valuable parametric insights.</p>

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Thermal behavior of rotating micropolar materials under a two-temperature thermoelastic model with nonlocal thermal dual-phase-lag heat transfer

  • 期刊论文

  • 发表日期：

    2026年1月3日

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  • Abeer Alhashash,
  • Ahmed Abouelregal

摘要

Non-local continuum theory is key to understanding material point interactions, emphasizing size-dependent effects in heat conduction to enhance microscopic-macroscopic interactions. This study develops a generalized thermoelasticity model integrating a two-temperature framework with nonlocal heat conduction and dual-phase-lag effects. A nonlocal thermal length-scale parameter captures size-dependent thermal interactions. The model investigates planar wave propagation in a homogeneous micropolar linear thermoelastic medium rotating at constant angular velocity, with a stationary coordinate system. Using specific boundary conditions and the normal mode method, we analyze variations in temperature, displacement, micro-rotation, coupling, and thermal stresses due to heating. Modified governing equations, solved via the normal mode approach, reveal how nonlocal thermal parameters, rotation, and two-temperature factors affect these physical quantities. The findings underscore the significant influence of polymer microstructure thermal properties on small-scale dynamics and memory-dependent behaviors, offering valuable parametric insights.