A simple and efficient semi-analytic method to solve the nonlinear dynamic response of composite cylindrical shells with circumferential stiffeners under axial impact load is presented.
采用半解析的方法,建立离散加筋圆柱壳模型,基于复合材料多层扁壳大挠度的剪切变形理论,利用Ham ilton原理导出环向加筋复合材料圆柱壳的非线性运动控制方程;用Galerk in方法对空间变量进行离散,将位移和载荷展开为双级数,得到有关时间的常微分方程组,最后采用R-Kutta方法数值求解。
Limit pressure for equal-diameter welded pipe branch junctions containing circumferential cracks part (Ⅱ) -- an approximate calculation approach;
含环向裂纹等径焊制三通极限压力(II)——工程估算方法
Limit pressure for equal diameter welded pipe branch junctions containing circumferential cracks part (Ⅰ) —— finite element analysis;
含环向裂纹等径焊制三通极限压力(Ⅰ)——有限元分析