在这篇论文,弄弯管理方程和精力版本率的分析表示的柱子在装载压缩的圆柱的壳与分层生长联系了被使用动人的边界和 Griffith 破裂标准的变化原则导出。有限差别方法被用来产生弄弯 delaminated 的答案的柱子圆柱的壳,并且与这些答案,精力版本率的价值被决定。在 simulational 例子,大量参数的效果边界例如分层尺寸和深度,调节,几何参数,材料性质并且把压成薄片在 axisymmetrical 的精力版本率上叠序列把压成薄片的圆柱的壳强烈地被讨论。
In this paper, the postbuckling governing equations and the analytical expression of the energy release rates associated with delamination growth in a compression-loaded cylindrical shell are derived by using the variational principle of moving boundary and the Griffith fracture criterion. The finite difference method is used to generate the postbuckling solutions of the delaminated cylindrical shells, and with these solutions, the values of the energy release rates are determined. In simulational examples, the effects of a wide range of parameters, such as delamination sizes and depths, boundary conditions, geometrical parameters, material properties and laminate stacking sequences on the energy release rates of axisymmetrical laminated cylindrical shells are intensively discussed.