金属学报  1994, Vol. 30 Issue (16): 180-186

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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

田晓滨;赵晓鹏;周本濂

中国科学院金属研究所;中国科学院国际材料物理中心

A BIOMIMETIC MODEL OF SHORT FIBRE REINFORCED COMPOSITE MATERIALS── I Stress Distribution of Composite Reinforced by Dumbbell Fibres

TIAN Hiaobin(Institute of Metal Research;Chinese Academy of Sciences;Shenyang);ZHAO Hiaopeng;ZHOU Benlian(Institute of Metal Research;Chinese Academy of Scicnces;Shenyang;International Center for Materials Physics;Chinese Academy of Sciences;Shenyang)(Manuscript received 24 June;1993:in revised form 25 August;1993)

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.
, , . A BIOMIMETIC MODEL OF SHORT FIBRE REINFORCED COMPOSITE MATERIALS── I Stress Distribution of Composite Reinforced by Dumbbell Fibres[J]. Acta Metall Sin, 1994, 30(16): 180-186.

摘要 参考文献 相关文章 Metrics 全文: PDF(401 KB)   摘要: 受生物体构件的启发，提出了哑铃状短纤维增强复合材料的模型．分析了带球短纤维和基体中的应力分布，发现端头半径粗化将改善纤维中轴向应力分布，使之趋于均匀化，同时可减少纤维端部界面的剪应力．研究表明纤维长径比对纤维端头应力影响较小．讨论了纤维－基体模量比对纤维轴向最大拉伸应力和界面最大剪应力的影响． 关键词 ： 应力分析,  仿生,  哑铃状短纤维,  短纤维复合材料     Abstract：The model of dumbbell fibre-reinforced composite is put forwards from the viewpoint of biomimetics.The stress distributions in the enlarged-end fibre and in the matrix are analyzed.The axial stress in the fibre is found to increase and the interfacial shear stress decrease with the radius of the enlarged end.It is shown that for the fibre aspect ratio of lengh to diameter,a small influence on the stress state at the fibre end is expected.The effect of the fibre-matrix elastic modulus ratio on the maximum axial stress in the fibre,and the interfacial maximum shear stress between fibre and matrix is discussed.Correspondent:ZHOU Benlian,Professsor,(Institute of Metal Research, Chinese Academy of Sciences,Shenyang 110015) Key words： biomimetics    dumbbell short fibre    short fibre reinforced composite      基金资助:国家自然科学基金 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 田晓滨 赵晓鹏 周本濂 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1994/V30/I16/180 1王震鸣．复合材料力学和复合材料结构力学．北京:机械工业出版社,1990:2472周本濂．材料科学进展,1991;5:5243马和中．生物力学导论．北京:航空学院出版社,1986:1334Phan-ThienN．FibreSciTechnol,1980-1981;14:2415Phan-ThienN．FiberSciTechnol,1981;15:1116CoxHL．BritJApplPhys,1952;3:727NikpuK,ChenYF,KardosJL．ComposSciTechnol,1990;38:1758HsuehCH．JMaterSci,1989;24:44759LeungCKY,LiVC．Composites,1990;21:305 [1] 孙雪坤;秦荣山;刘东民;周本濂. 界面性能对哑铃状短纤维增强复合材料增强效果的影响[J]. 金属学报, 1997, 33(7): 781-784. [2] 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. [3] 李寰;李家宝;孙立志;王中光. 低温处理对SiC_p/6061Al复合材料残余应力的影响[J]. 金属学报, 1996, 32(12): 1279-1284. [4] 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. [5] 瞿志豪;彭惠红. 轧辊接触应力的混合解法[J]. 金属学报, 1992, 28(5): 51-58. Viewed Full text Abstract Cited   Shared      Discussed