【摘要】 基于直接刚度法建立的十二参数任意四边形薄板精化不协调单元，采用三次和线性插值函数的某种组合构造了其单元几何刚度阵，并着重对几何刚度阵进行精化，给出了精化几何刚度阵显式． 数值结果表明，其收敛速度快、精度高、易于实施．更多还原

【Abstract】 Based on 12\|DOF quadrilateral thin plate refined non\|conforming element derived by the direct stiffness method and using the combination of cubic interpolation and linear interpolation function,a refined element membrane stiffness matrix is generated. A detailed formulation and numerical evalution are presented. Numberical examples demonstrate the fast convergence, high accuracy and easy performance.更多还原