Abstract
Abstract
In this work, a model of cellular structures in thermal fields has been established based on methods of material mechanics, structural mechanics and thermodynamics. Cellular structures have different deformation behaviors in thermal environment with different coefficients of thermal expansion (CTE), the desirable equivalent coefficient of thermal expansion (ECTE) of cellular structures can be achieved by introduce members with different CTEs. Three different configurations are proposed to study the relationship between ECTE and geometrical configuration. The results show that: desirable ECTE can be obtained by designing configuration shape of cellular structures, inclined angle of members and positions of different CTE materials.