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1 944.8 (kN/mm)/kg,平均压缩强度质量比为833.8 kN/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.
参考文献
| [1] | 杜善义.先进复合材料与航空航天[J].复合材料学报,2007,24(1):1-11.Du Shanyi.Advanced composite materials and aerospace engineering[J].Acta Materiae Compositae Sinica,2007,24(1):1-11. |
| [2] | Vasiliev V V,Barynin V A,Razin A F.Anisogrid composite lattice structures— development and aerospace applications[J].Composite Structures,2012,94(3):1117-1127. |
| [3] | Totaro G,de Nicola F.Recent advance on design and manufacturing of composite anisogrid structures for space launchers[J].ActaAstronautica,2012,81(2):570-577. |
| [4] | Evans A G,Hutchinson J W,Fleck N A,et al.The topological design of multifunctional cellular metals[J].Progress in Materials Science,2001,46(3-4):309-327. |
| [5] | Wang B,Wu L Z,Ma L,et al.Mechanical behavior of the sandwich structure with carbon fiber-reinforced pyramidal lattice truss core[J].Materials and Design,2010,31 (5):2659-2663. |
| [6] | Francom L R,Jensen D W.Three-dimensional Iso-Truss structure:US Patent,WO98/45556[P].1998-10-15. |
| [7] | Structural capability[EB/OL].[2012-10-05].http://www.isotruss.org. |
| [8] | Delta 7 Arantix lightweight hardtail mountain bike[EB/OL].[2012-11-10].http://www.delta7bikes.com/arantix-mountain-bike.htm. |
| [9] | Jensen D W,Francom L R.Iso-Truss structure:US Patent,2005/0115186A1[P].2005-06-02. |
| [10] | 黄发荣,周燕.先进树脂基复合材料[M].北京:化学工业出版社,2008:294-299.Huang Farong,Zhou Yan.Advanced polymer composite[M].Beijing:Chemical Industry Press,2008:294-299. |
| [11] | Jensen C M.Flexural behavior of a graphite/epoxy IsoTruss[D].Provo:Birgham Young University,2000. |
| [12] | Keller B S.Tension,torsion,and flexure of an IsoTrussTM structure with an integral cylindrical end[D].Provo:Birgham Young University,2003. |
| [13] | Hansen S M.Influence of consolidation and interweaving on compression behavior of IsoTrussTM structures[D].Provo:Birgham Young University,2004. |
| [14] | Rackliffe M E.Development of ultra-lightweight IsoTrussTM grid structures[D].Provo:Birgham Young University,2002. |
| [15] | Ayers Ⅲ J T.Hydrodynamic drag and flow visualization of IsoTruss lattice structures[D].Provo:Birgham Young University,2005. |
| [16] | Ferrell M J.Flexural behavior of carbon/epoxy IsoTrussTM-reinforced concrete beam-columns[D].Provo:Birgham Young University,2005. |
| [17] | Scoresby B F.Low-velocity longitudinal and radial impact of IsoTrussTM grid structures[D].Provo:Birgham Young University,2003. |
| [18] | Lai C L,Liu C,Wang J B.Composite grid cylinder vs.composite tube:comparison based on compression test,torsion test and bending test[C]// 37th International MATA-DOR Conference,2012. |
| [19] | 张国腾,陈蔚岗,杨波,等.T700碳纤维/环氧复合材料力学性能试验研究[J].纤维复合材料,2009(2):49-52.Zhang Guoteng,Chen Weigang,Yang Bo,et al.Testing research on mechanical properties of T700 carbon fiber/epoxy composites[J].Fiber Composites,2009(2):49-52. |
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