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金属学报  1996, Vol. 32 Issue (4): 438-442    
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短纤维增强复合材料的仿生模型──Ⅲ.脆性基体复合材料中哑铃状纤维的强化作用
赵晓鹏;周本濂;罗春荣;刘建伟
中国科学院金属研究所;中国科学院国际材料物理中心;西北工业大学
A BIOMIMETIC MODEL OF SHORT FIBRE REINFORCED COMPOSITE MATERIALS Ⅲ. Intensiting Effect of Dumbbell Fibre-Reinforced Composite with Brittle Matrix
ZHAO Hiaopeng; ZHOU Benlian(Institute of Metal Research; Chinese Academy of Sciences; International Centre for Materials Physics; Chinese Academy of Sciences; Shenyang 110015); LUO Chunrong; LIU Jianwei(Northwestern Polytechnical University; Xi'an 710072) (Manuscript received 1995-07-29; in revised form 1995-10-03)
引用本文:

赵晓鹏;周本濂;罗春荣;刘建伟. 短纤维增强复合材料的仿生模型──Ⅲ.脆性基体复合材料中哑铃状纤维的强化作用[J]. 金属学报, 1996, 32(4): 438-442.
, , , . A BIOMIMETIC MODEL OF SHORT FIBRE REINFORCED COMPOSITE MATERIALS Ⅲ. Intensiting Effect of Dumbbell Fibre-Reinforced Composite with Brittle Matrix[J]. Acta Metall Sin, 1996, 32(4): 438-442.

全文: PDF(331 KB)  
摘要: 根据哑铃状纤维增强复合材料的受力分析、研究了脆性基体弱结合界面的情况。结果表明,端头粗化的钢短纤维增强混凝土材料,其抗弯强度较平直纤维可提高20%.端部纤维粗化所造成的应力分布均匀及纤维拔出阻力增加是提高材料强度的主要原因.
关键词 仿生哑铃状纤维脆性基体    
Abstract:According to the stress analysis of dumbbell fibre-reinforced composite, the weakly bonded interfaces in the composite materials with brittle matrix were investigated. It is shown that the bending strength of concrete reinforced by fibres with enlarged-ends is 20% higher than that by plain fibres. The well distributed stress and the increased pull-out resistance because of enlarged-ends are the important reasons. It means that this biomimetic model gives rise reinforcing effect not only to plastic matrix but also to brittle one. Correspondent: ZHAO Xiaopeng, (Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110015)
Key words biomimetic    dumbbell fibre    brittle matrix
收稿日期: 1996-04-18     
基金资助:国家自然科学基金
1ReinhardtHW,NaamanAE.MaterStruct,1992;25:602田晓滨,赵晓鹏,周本濂.金属学报,1994;30:B1803赵晓鹏,田晓滨,周本濂,李世红.金属学报,1994;30:B1874李荫余.建筑材料与试验.南京:南京工学院出版社,1991:75NaamanAE,HomrichJR.ACIMaterJ,1989;86:2446贾贤,成会明,周本濂.见:’94秋季中国材料研讨会论文摘要集,中国材料研究学会,北京,1995:1353
[1] 赵晓鹏;田晓滨;周本濂;李世红. 短纤维增强复合材料的仿生模型──Ⅱ 弱结合界面的强度理论[J]. 金属学报, 1994, 30(16): 187-193.
[2] 田晓滨;赵晓鹏;周本濂. 短纤维增强复合材料的仿生模型──Ⅰ 哑铃状短纤维增强复合材料的应力分析[J]. 金属学报, 1994, 30(16): 180-186.