【摘要】 对于具有特定材料属性的周期性复合材料设计,提出了一种参数化的形状优化方法。对于带有周期性结构的两相材料,给定细观单胞结构的基本构型,通过参数化的实体造型技术,结合均匀化方法,实现了通用的材料单胞形状参数化设计方法,以获取指定材料性能。在参数化结构形状优化设计CAD/CAE集成平台POSHAPE上完成程序实现。文中算例给出了两相蜂窝型骨架复合材料和空心复合材料周期性单胞的零泊松比和指定参数性质的形状优化设计过程,并验证了本文方法的有效性。更多还原

【Abstract】 This paper presents a parameterized shape design optimization method to design base cell shape of composite material with specific elastic properties on an open platform POSHAPE which is built based on CAD/CAE integration technique.Homogenization method is engaged to calculate the composite material property with its periodical base cell.Numerical examples are given to design composite materials of two phases for zero Poisson’s ratio and specific material property.The results validate the effectiveness and efficiency of the present method.更多还原