空间层状正交异性加强结构的计算

本文用曲线坐标系下张量分析的方法导出了空间正交异性薄膜应力单元的刚度矩阵.这种单元可以很好地体现具有空间曲线正交异性性质的材料特征,只需用少量的单元就可计算在工程中遇到的空间层状正交异性加强结构问题.

COMPUTATIONS ON 3/D STRUCTURES STIFFENED BY LAYER ORTHOTROPIC ELASTICITIES

An element stiffness matrix of an orthotropic membrane in three dimensional space was developed in this paper by the Lensor analysis method on curvilinear coordinates. USing such kind of element, the 3/D curvilinear orthotropic material property could be represented very well. In engineering practice, to compute a space structure stiffened by layer orthotropic elasticities, only using a few elements could give satisfactory results. Some examples were proved the advantage of this element.