检索结果-内蒙古大学图书馆

A novel nonlinear FE perturbation method and its application to stacking sequence optimization for snap-through response of cylindrical shell panel

引用

COMPUTERS & MATHEMATICS WITH APPLICATIONS 2022年 112卷 154-166页

作者： Liang, Ke Li, Zheng Northwestern Polytech Univ Sch Aeronaut YouyiXi Rd 127 Xian 710072 Peoples R China

Cylindrical shell panels are commonly used for the lightweight design of thin-walled structures in the aerospace engineering. In this work, the snap-through buckling of composite cylindrical shell panels subjected to lateral loads is calculated and designed. We present a novel method to extract the essential features of the snap-through response using a fast path-following scheme, and subsequently apply them as inputs to the stacking sequence optimization. In the path-following scheme, the full snap-through response can be achieved efficiently based on the finite element perturbation method, meanwhile its numerical accuracy is well guaranteed by the necessary corrections on residual forces. The essential features of the snap-through response, i.e. the load-limit point, critical deflection and jump deflection, are selected to be either the objective or the constraint in the stacking sequence optimization. The stacking sequence optimization using the genetic algorithm can be realized considering the severe geometrical nonlinearities of mechanics responses, benefiting from the high efficiency and robustness of a single function call. Composite cylindrical shell panels with various geometry/lamination configurations and load/displacement boundary conditions, are considered in the stacking sequence optimizations, to validate the good performance of the proposed method.

关键词： Snap-through buckling Path-following scheme finite element perturbation method Stacking sequence optimization

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：