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含金属内衬的复合材料缠绕薄壁容器自紧设计的工程方法

, PP. 217-221

Keywords: 复合材料,缠绕容器,金属内衬,自紧工艺设计,强化模型,承载能力,工程算法

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Abstract:

基于薄壁容器理论及卸载后容器内衬残余应变为零的假设,提出了一种含金属内衬的复合材料缠绕薄壁容器自紧设计的工程方法,在自紧压力预测中可分别考虑金属内衬的双线性随动和等向强化特征。通过与有限元分析结果比较,证明了本文中提出的自紧设计方法的简便性和有效性。以一典型容器为例,研究了在自紧工艺后内衬的残余应变场和工作压力时应力场分布,证明了采用本文中提出的自紧设计可明显提高容器的承载能力。

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