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考虑剪力滞后效应和翘曲扭转的影响分析了一种曲梁单元 ,在研究中运用了变分法形成刚度矩阵和节点荷载列阵 .算例分析表明本文数值结果与板壳有限元方法所得结果符合良好 .证明了本文方法是有效的 ,可用于有关工程设计中 .
Considering the effects of shear lag and warpage, a curved beam element is analyzed, and the variational method is used to form the stiffness matrix and the node load array. The numerical results show that the numerical results obtained in this paper are consistent with those obtained by the finite element method The result is in good agreement, which proves that this method is effective and can be used in engineering design.