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工程力学  2012 

缠绕肋缠绕过程试验及力学行为分析

DOI: 10.6052/j.issn.1000-4750.2011.03.0117

Keywords: 缠绕肋,材料试验,缠绕试验,缠绕弯矩,缠绕行为

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Abstract:

首先通过单向拉伸试验测试和理论计算两种方法得到4层(45?/?45?/45?/?45?)铺设碳纤维复合材料的弹性模量,作为文中数值计算及弯矩分析的材料参数。通过4层(45?/?45?/45?/?45?)铺设碳纤维复合材料肋进行整体缠绕过程试验,得到肋整体缠绕过程肋表层应变和缠绕弯矩。利用ABAQUS分别建立了复合材料肋整体缠绕精细有限元模型,实现了缠绕一周过程强几何非线性数值模拟分析,得到各层应力、应变特征和缠绕弯矩,并与试验结果比较分析。进而给出缠绕弯矩解析表达式,并对材料铺设与厚度进行分析,得到缠绕过程最优材料铺设机理与最大厚度分析方法。该文对缠绕肋设计和深入研究具有重要参考价值。

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