【摘要】 本文提出了一种三维-二维混合分区有限元方法分析复合材料层合结构。构造了三维-二维过渡元素和三维的十七节点复合元素。本方法大大地减少了自由度,缩短了计算时间。算例表明,计算结果令人满意。本方法是可靠的并同样适用于其它结构。更多还原

【Abstract】 A 3D-2D mixed sub-region FEM is proposed for composite structures in this paper. A 3D-2D transition element and a 3D brick element with 17 points are developed. The examples show that the approach can greatly reduce the calculating scale and time with satisfactory accuracy. The method is reliable and also suitable for other structures.更多还原