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Thermal stress induced by electric current in the vicinity of an elliptic inclusion in an infinite plate

机译:无限板中椭圆形夹杂物附近的电流引起的热应力

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摘要

We consider an elliptic inclusion embedded in an infinite plate subjected to the simultaneous effects of electric current and energy flux at infinity. Using complex variable methods, we analyze the resulting mechanical properties of the composite, in particular around the perimeter of the inclusion. In doing so, we find that thermal stress can exist even in a simply connected region as a result of Joule heating which can therefore be used to preset stress in manufactured devices. In the particular case of the elliptic inclusion, we find that the electric current has the ability to transfer thermal stress to regions of lower temperature thereby improving security and reliability of the corresponding devices.
机译:我们考虑了嵌入无限板中的椭圆形夹杂物,同时受到电流和无穷大能量通量的同时影响。使用复杂的变量方法,我们分析了复合材料的机械性能,尤其是在夹杂物周围。通过这样做,我们发现由于焦耳热的结果,即使在简单连接的区域中也可能存在热应力,因此可以将其用于预置制造设备中的应力。在椭圆形夹杂物的特殊情况下,我们发现电流具有将热应力传递到较低温度区域的能力,从而提高了相应器件的安全性和可靠性。

著录项

  • 来源
    《Journal of thermal stresses》 |2019年第9期|976-992|共17页
  • 作者单位

    Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Jiangsu, Peoples R China|Univ Alberta, Dept Mech Engn, Edmonton, AB T6G 1H9, Canada;

    Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Jiangsu, Peoples R China;

    Univ Alberta, Dept Mech Engn, Edmonton, AB T6G 1H9, Canada;

    Nanjing Univ Aeronaut & Astronaut, State Key Lab Mech & Control Mech Struct, Nanjing 210016, Jiangsu, Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Electric current; elliptic inclusion; thermal stress;

    机译:电流;椭圆夹杂物;热应力;

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