【摘要】 文章把杂交元的优化设计原理用于厚薄壳问题,构造了正交曲线坐标系中的Mindlin型四节点二十自由度壳元。该元通用于各种厚度、任意形状的深壳和扁壳,构造简单,精度较高且没有自锁现象。更多还原

【Abstract】 A 20 DOF hybrid stress element based upon Mindlin plate theory is developed by using the optimization design method for thin and moderately thick shell. It is of quadrilateral shape with only four corner nodes, and can be used to shallow or deep shells with excellent performance and the "shear locking" problem is no longer existed.更多还原