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<p>The intensification of thermal loads and the miniaturization of electromechanical systems require accurate prediction of thermoelastic fields in structurally sensitive materials, the properties of which may significantly depend on the scale of modeling. In this paper, we study a spatially nonlocal model of thermoelasticity for a solid annular structure with isotropic and homogeneous thermomechanical parameters of the material. Based on the numerical analysis of the dimensionless model, stationary distributions of temperature and stress–strain fields are obtained. It is established that the most significant deviations of solutions from the predictions of the classical theory occur near the inner boundary of the structure. Furthermore, it is demonstrated that a complex geometric and size effect, observable when the structure’s thickness varies, is present. Considering these facts may be important when designing microscale annular and cylindrical structures.</p>

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Analysis of nonlocal thermoelastic effects in annular structures

  • 期刊论文

  • 发表日期：

    2026年5月15日

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  • M. M. Evseeva,
  • I. Y. Savelyeva,
  • A. A. Sokolov

摘要

The intensification of thermal loads and the miniaturization of electromechanical systems require accurate prediction of thermoelastic fields in structurally sensitive materials, the properties of which may significantly depend on the scale of modeling. In this paper, we study a spatially nonlocal model of thermoelasticity for a solid annular structure with isotropic and homogeneous thermomechanical parameters of the material. Based on the numerical analysis of the dimensionless model, stationary distributions of temperature and stress–strain fields are obtained. It is established that the most significant deviations of solutions from the predictions of the classical theory occur near the inner boundary of the structure. Furthermore, it is demonstrated that a complex geometric and size effect, observable when the structure’s thickness varies, is present. Considering these facts may be important when designing microscale annular and cylindrical structures.