芳纶纤维增韧碳纤维-泡沫金属夹芯梁压缩性能及界面性能

复合材料学报, 2014, 31(6): 1497-1502.

芳纶纤维增韧碳纤维-泡沫金属夹芯梁压缩性能及界面性能

孙直 ^1, , 石姗姗 ^2, , 孙士勇 ^3, , 陈浩然 ^4, , 胡晓智 ^5,

1.大连理工大学工业装备结构分析国家重点实验室,大连116023;西澳大利亚大学机械工程学院,珀斯WA 6009

2.大连理工大学工业装备结构分析国家重点实验室,大连116023;西澳大利亚大学机械工程学院,珀斯WA 6009

3.大连理工大学工业装备结构分析国家重点实验室,大连116023;大连理工大学机械工程学院,大连116023

4.大连理工大学工业装备结构分析国家重点实验室,大连,116023

5.西澳大利亚大学机械工程学院,珀斯WA 6009

基金项目: 国家自然科学基金青年基金(11102032) 工业装备结构分析国家重点实验室自主研究课题(S13205)

关键词：复合材料夹芯梁 , 界面增韧 , 芳纶纤维 , 低密度短纤维薄膜 , 桥联作用

Compression performances and interfacial properties of carbon fiber-foam metal sandwich beams with aramid fiber toughening

Keywords： composite sandwich beams , interfacial toughening , aramid fibers , low-density short fiber film , bridging effect

为研究芳纶短纤维对复合材料夹芯材料/结构的界面及性能的影响,对具有芳纶短纤维增韧界面的碳纤维-泡沫铝夹芯梁进行了试验和细观增韧机制研究.在夹芯梁制备过程中,在碳纤维-泡沫铝界面加入低密度芳纶短纤维薄膜,通过短纤维的桥联作用,提高夹芯梁的界面黏接性能.研究了芳纶纤维增韧对夹芯梁面内压缩性能和破坏模态的影响,采用非对称双悬臂梁(ADCB)试验测量了不同增韧参数条件下,碳纤维表板与泡沫铝芯体之间的临界能量释放率.试验结果显示:在相同增韧参数条件下,Kevlar纤维增韧夹芯梁的面内压缩性能和界面临界能量释放率均较好,而混杂长度Kevlar纤维的界面增韧效果最优.通过对试件断面的SEM观测,分析了芳纶纤维增韧的细观增韧机制.

参考文献

[1]	Vaidya U K;Pillay S;Bartus S.Impact and post-impact vibration response of protective metal foam composite sandwich plates[J].Materials Science and Engineering A,2006428(01):59-66.
[2]	Nemat-Nasser S;Kang W J;McGee J D.Experimental investigation of energy-absorption characteristics of components of sandwich structures[J].International Journal of Impact Engineering,200734(06):1119-1146.
[3]	Leong K C;Jin L W.An experimental study of heat transfer in oscillating flow through a channel filled with an aluminum foam[J].International Journal of Heat and Mass Transfer,200548(02):243-253.
[4]	Wu J J;Li C G;Wang D B.Damping and sound absorption properties of particle reinforced Al matrix composite foams[J].Composites Science and Technology,200363(03):569-574.
[5]	Du L;Jiao G Q.Indentation study of Z-pin reinforced polymer foam core sandwich structures[J].Composites Part A:Applied Science and Manufacturing,200940(06):822-829.
[6]	Mouritz A P.Review of z-pinned composite laminates[J].Composites Part A:Applied Science and Manufacturing,200738(12):2383-2397.
[7]	Sohn M S;Hu X Z.Mode Ⅱ delamination toughness of carbon-fiber epoxy composites with chopped Kevlar fiber reinforcement[J].Composites Science and Technology,199452(03):439-448.
[8]	Yasaee M;Bond I P;Trask R S.Mode Ⅱ interfacial toughening through discontinuous interleaves for damage suppression and control[J].Composites Part A:Applied Science and Manufacturing,201243(01):121-128.
[9]	Wang C;Chen H R;Lei Z K.Experimental investigation of interfacial fracture behavior in foam core sandwich beams with visco-elastic adhesive interface[J].Computers & Structures,201092(05):1085-1091.
[10]	Sun Z;Jeyaraman J;Sun S Y.Carbon-fiber aluminumfoam sandwich with short aramid-fiber interfacial toughening[J].Composites Part A:Applied Science and Manufacturing,201243(11):2059-2064.
[11]	Sun S Y;Chen H R.The interfacial fracture behavior of foam core composite sandwich structures by a viscoelastic cohesive model[J].Science China Physics Mechanics & Astronomy,201154(08):1481-1487.
[12]	Hearle J W S.High-performance fibers[M].Abington:Woodhead Publishing Ltd,2001:36-48.
[13]	孙士勇;王灿;陈浩然.具有短纤维增韧界面的复合材料夹芯梁断裂机制的实验和数值研究[J].复合材料学报,201128(01):172-176.

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