一种新型板弯单元及其在几何非线性下的应用

摘要

The corresponding higher-order shear deformation theory of Reddy quadrilateral finite element range of applications was expanded to be used in composite laminates and structure in the pull-bend geometry under load coupled nonlinear analysis.Numerical results show that such new element can be used to calculate the stress and displacement more accurately,and can be promoted for the geometrically nonlinear analysis.%扩展了对应于Reddy高阶剪切变形理论的一种新型四边形有限元的应用范围,将其用于复合材料层合板的应力计算和结构在拉伸-弯曲耦合载荷作用下的几何非线性分析。数值结果表明,这种新型单元能较为精确地计算应力和位移,并适于推广到几何非线性分析。