Applied Mathematics and Mechanics (English Edition) ›› 1998, Vol. 19 ›› Issue (5): 427-435.

• 论文 • 上一篇    下一篇

SOME EXACT RESULTS CONCERNING THERMOELASTIC PROPERTIES OF HOLLOW SPHERE COMPOSITES

何陵辉1, 成振强1, 刘人怀2   

  1. 1. University of Science and Technology of China, Hefei 230026, P. R. China;
    2. Jinan University, G.Uangzhou 510633, P. R. China
  • 收稿日期:1995-09-18 出版日期:1998-05-18 发布日期:1998-05-18

SOME EXACT RESULTS CONCERNING THERMOELASTIC PROPERTIES OF HOLLOW SPHERE COMPOSITES

He Linghui1, Cheng Zhenqiang1, Liu Renhuai2   

  1. 1. University of Science and Technology of China, Hefei 230026, P. R. China;
    2. Jinan University, G.Uangzhou 510633, P. R. China
  • Received:1995-09-18 Online:1998-05-18 Published:1998-05-18

摘要: Thermoelastic properties of hollow sphere coloposites are studied based on the uniform malrix-field concept proposed here. Some connections bewteen local thermal and mechanical fields produced by certain homogeneous boundary conditins arederived, and furthermore, exact relations are also obtained between the effectivethermoelastic properties of the compostites. For a macroscopically isotropic compositewith a certain ratio of the outer radius to the inner radius, it is found that the effectivebulk modules and the linear coefficient of thermal expansion can be exactlydetermined, if the thermal expansion coeffieient of the matrix and that of the sphereare the same.

关键词: composites, hollow spheres, thermoelastic properties

Abstract: Thermoelastic properties of hollow sphere coloposites are studied based on the uniform malrix-field concept proposed here. Some connections bewteen local thermal and mechanical fields produced by certain homogeneous boundary conditins arederived, and furthermore, exact relations are also obtained between the effectivethermoelastic properties of the compostites. For a macroscopically isotropic compositewith a certain ratio of the outer radius to the inner radius, it is found that the effectivebulk modules and the linear coefficient of thermal expansion can be exactlydetermined, if the thermal expansion coeffieient of the matrix and that of the sphereare the same.

Key words: composites, hollow spheres, thermoelastic properties

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