薄板弯曲DKT单元刚度矩阵的显式解析形式

摘要

This paper studies the explicit form of DKT element in thin plate bending problems.Based on the triangular area coordinats the form of the element stiffness matrix is obtained in DKT element.The explicit form of the stiffness matrix can be used to improve the computation effeciency of the finite element.%文章研究了薄板弯曲DKT单元刚度矩阵的显式解析形式。基于三角形面积坐标得到DKT单元中应变矩阵的形式,并得到相应的单元刚度矩阵。所得刚度矩阵的显式形式显示计算机代数进行单元刚度矩阵显式求解的有效性。