端部受剪力的圆截面悬臂梁通过等参数单元计算圆筒的位移和内力分布的matlab算例，采用14点的irons积分公式计算刚度矩阵，节点应力采用绕节点平均法-By the end of the circular cross-section cantilever shear parameters such as unit calculates the cylinder through displacement and force distribution matlab example, a 14-poi