摘要
针对功能梯度材料这种新型材料,提出了采用等参梯度元建立有限元模型的方法。推导了两种受力情况下各相同性功能梯度材料薄板的应力解析解。在实例运算中,通过梯度单元数值解与解析解及传统均一单元数值解的比较分析,验证了功能梯度材料采用等参梯度元建立有限元模型的有效性,对功能梯度材料的进一步研究具有一定的指导意义。
Functional graded material is a new material. Isoparametric graded finite elements are used for building the corresponding model for functional graded material in this paper. And the exact analytical solutions are derived for nonhomogeneous isotropic functional graded material plate under two loading conditions. By comparing the numerical solutions with the analytical solutions, it is proved that the isoparametric graded finite elements are useful. This work can help farther researches on functional graded material.
出处
《飞机设计》
2007年第4期31-33,52,共4页
Aircraft Design
关键词
功能梯度材料
等参梯度元
各相同性
functional graded material
isoparametric graded finite element
isotropy
