SOME EXACT RESULTS CONCERNING THERMOELASTIC PROPERTIES OF HOLLOW SPHERE COMPOSITES
SOME EXACT RESULTS CONCERNING THERMOELASTIC PROPERTIES OF HOLLOW SPHERE COMPOSITES作者机构:University of Science and Technology of China Hefei P. R. China Jinan University Guangzhou P. R. China
出 版 物:《Applied Mathematics and Mechanics(English Edition)》 (应用数学和力学(英文版))
年 卷 期:1998年第19卷第5期
页 面:427-435页
核心收录:
学科分类:0809[工学-电子科学与技术(可授工学、理学学位)] 07[理学] 070205[理学-凝聚态物理] 08[工学] 0805[工学-材料科学与工程(可授工学、理学学位)] 080502[工学-材料学] 0702[理学-物理学]
主 题:composites hollow spheres thermoelastic properties
摘 要:Thermoelastic properties of hollow sphere composites are studied based on the uniform matrix-field concept proposed here. Some connections between local thermal and mechanical fields produced by certain homogeneous boundary conditions are derived, and furthermore, exact relations are also obtained between the effective thermoelastic properties of the composites. For a macroscopically isotropic composite with a certain ratio of the outer radius to the inner radius, it is found that the effective bulk modulus and the linear coefficient of thermal expansion can be exactly determined, if the thermal expansion coefficient of the matrix and that of the sphere are the same.