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<p>This study proposes a general imperfect thermal contact model to predict the thermal contact resistance at the interface among multi-layered composite structures. Based on the Green-Lindsay (GL) thermoelastic theory, semi-analytical solutions of temperature increment and displacement of multi-layered composite structures are obtained by using the Laplace transform method, upon which the effects of thermal resistance coefficient, partition coefficient, thermal conductivity ratio and heat capacity ratio on the responses are studied. The results show that the generalized imperfect thermal contact model can realistically describe the imperfect thermal contact problem. Accordingly, it may degenerate into other thermal contact models by adjusting the thermal resistance coefficient and partition coefficient.</p>

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An improved model for predicting thermal contact resistance at multi-layered rock interface

  • 期刊论文

  • 发表日期：

    2025年1月1日

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  • Min-jie Wen,
  • Jia-hao Xie,
  • Li-chen Li,
  • Yi Tian,
  • M. Hesham El Naggar,
  • Guo-xiong Mei,
  • Wen-bing Wu

摘要

This study proposes a general imperfect thermal contact model to predict the thermal contact resistance at the interface among multi-layered composite structures. Based on the Green-Lindsay (GL) thermoelastic theory, semi-analytical solutions of temperature increment and displacement of multi-layered composite structures are obtained by using the Laplace transform method, upon which the effects of thermal resistance coefficient, partition coefficient, thermal conductivity ratio and heat capacity ratio on the responses are studied. The results show that the generalized imperfect thermal contact model can realistically describe the imperfect thermal contact problem. Accordingly, it may degenerate into other thermal contact models by adjusting the thermal resistance coefficient and partition coefficient.