功能梯度板壳的力学研究进展

摘要

功能梯度材料(FGM)是一种材料组分或微观结构沿一个或几个方向连续变化的新型复合材料.FGM中基本消除了宏观界面,同时具有很好的可设计性,设计人员可以有目的地改变材料组成,以获得所期望的性能.由FGM构成的功能梯度板壳结构在许多工程领域中有着广阔的应用前素,评速了FGM板壳结构的弯曲、屈曲和后屈曲、振动和动力稳定性等力学问题研究的发展现状,阐述了常用方法和理论的优缺点,并提出了未来的发展趋势和需要研究的方向.%Functionally graded materials (FGM) are new composite materials, where the material composition or microstructure varies in one or more directions. The macroscopical interfaces disappear in the FGM, and the FGM also permit designers to tailor the material compositions to optimize a. Desired characteristic. The functionally graded plates and shells made of FGM have potential applications in a wide variety of engineering fields. This paper reviews the investigations concerning the bending, buckling and postbuckling, vibration and dynamic stability of functionally graded plates and shells. The author expatiates the advantage and disadvantage of common methods and theories, the future research needs and evolution directions are also highlighted.