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IsoTruss超轻复合材料结构制造及力学性能测试

, PP. 375-382

Keywords: 超轻结构,IsoTruss,制造工艺,成型模具,性能测试

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Abstract:

IsoTruss是一种结合了轻质材料与轻质构型双重优势的新型超轻复合材料结构。为分析和验证其力学性能,在分析和总结IsoTruss结构构型特征和制造工艺的基础上,设计了一套柔性成型模具。采用该模具,运用湿法缠绕工艺和芳纶纤维强化工艺,制造了8节点单重IsoTruss构件,并测试了试件的轴压、弯曲和扭转力学性能。轴压试验结果显示,IsoTruss试件平均压缩刚度质量比为1944.8(kN/mm)/kg,平均压缩强度质量比为833.8kN/kg,达到同类构件性能,且高于相近外形尺寸的复合材料格栅柱状结构,验证了所采用的工艺方案和所设计的柔性模具能够满足IsoTruss结构的制造需求。

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