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双稳定矩形非对称复合材料层板的跳变研究 被引量：3

Snap-through of bi-stable rectangular unsymmetric cross-ply composite laminates
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摘要 对双稳定矩形非对称复合材料层合板两种稳定构型的跳变行为进行了实验和数值研究。通过实验测得中心加载下层合板两种稳定构型跳变的临界载荷,建立了两种稳定构型的非线性有限元分析模型,成功预报了层合板固化后的两种稳定构型,并进一步预报了两种稳定构型的跳变临界载荷,预报结果与实验结果吻合良好。实验和有限元模拟结果表明,中心加载下矩形非对称层合板两种构型的临界载荷相差较大,并且跳变的过程有所差异。 The snap-through of two stable configurations of rectangular unsymmetric cross-ply composite laminate were investigated through experimental and numerical ways.The critical loads of snap-through of the two stable configurations were measured in experiments,and a non-linear finite element model of bi-stable rectangular unsymmetric cross-ply composite laminate was built.The finite element model successfully predicts the two stable configurations and further predicts their critical loads of snap-through.It shows that the predicted results agree well with the experiment results.Finite element analysis（FEA） and experiments both reveal that the characteristics of snap-through of the two stable configurations are discrepant,and the corresponding critical loads are different greatly.
作者 李昊 戴福洪 杜善义
机构地区 哈尔滨工业大学复合材料与结构研究所
出处 《复合材料学报》 EI CAS CSCD 北大核心 2011年第4期196-201,共6页 Acta Materiae Compositae Sinica
基金 国家自然科学基金(10872058) 国家重点基础研究项目(2010CB631100)
关键词 双稳定 矩形 复合材料层板 跳变 临界载荷 bi-stable rectangular composite laminates snap-through critical load
分类号 TB332 [一般工业技术—材料科学与工程]
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参考文献13

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共引文献6

同被引文献20

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复合材料学报
2011年 第4期

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