[1]赵 谦.单向混杂复合材料拉伸性能的两级分析[J].南京理工大学学报(自然科学版),2007,(06):766-770.
 ZHAO Qian,WANG Shan-yuan.Tow-step Analysis of Tensile Behaviors of Unidirectional Hybrid Composites[J].Journal of Nanjing University of Science and Technology,2007,(06):766-770.
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单向混杂复合材料拉伸性能的两级分析
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
期数:
2007年06期
页码:
766-770
栏目:
出版日期:
2007-12-30

文章信息/Info

Title:
Tow-step Analysis of Tensile Behaviors of Unidirectional Hybrid Composites
作者:
赵 谦1 2 王善元2
1. 东华大学纺织学院, 上海200051; 2. 中材科技股份有限公司, 江苏南京210012
Author(s):
ZHAO Qian12WANG Shan-yuan2
1.College of Textiles,Donghua University,Shanghai 200051,China;2.Sinoma Science and Technology Co.Ltd.,Nanjing 210012,China
关键词:
混杂复合材料 剪滞模型 蒙特卡洛方法 拉伸性能
Keywords:
hybrid composites shear-lagmodel Monte-C arlo method tensile behav io r
分类号:
TB302.3
摘要:
为了研究混杂复合材料的混杂效应,该文建立了单向混杂复合材料拉伸性能的两级三维剪滞模型,第一级模型为纤维和树脂构成的纤维束两相材料体系,第二级模型为2种(或多种)纤维束组成的混杂复合材料体系。纤维的强度基于蒙特卡洛(Monte-Carlo)方法,用两参数的韦布尔(Weibull)分布模拟。用此模型模拟了夹芯和分散两种混杂方式、不同混杂比例下的碳/玻混杂单向复合材料棒材的纵向拉伸性能,数值模拟与实验结果吻合。研究发现:在该文的材料体系下,碳纤维体积分数低于或等于5%时,有明显的二次破坏现象。
Abstract:
To study the hybrid effects, a tw o-step 3-D shear-lagmode l fo r hybrid unidirect iona l composites is suggested. The first stepmodel is de fined as tw o-phase tow system constructed by fiber and matrix. The second stepmodel is defined as un idirectional hybrid composite system composed o f tw o ( ormore than tw o) types o f tow s. Based onMonte-C arlo simu la tion, the streng th estimation o f fiber is statistica lly described by the two-parameterW e ibu ll distribu tion. This model is adopted in tensile behav io r investigation of un id irectional carbon /g lass hybrid composite bars in wh ich carbon tow s distribute coax ia lly and d ispersedly respective ly. The numerica l simulation results agree w e llw ith the experimen tal resu lts. The study revea ls that the second damage is obvious when the vo lume fraction of carbon fiber is equa l or less than 5%.

参考文献/References:

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[ 2] 曾庆敦. 复合材料的细观破坏机制与强度[M ]. 北京: 科学出版社, 2002. 4- 92. [ 3 ] 范赋群, 曾庆敦, 黄晓清. 复合材料统计断裂理论[ J] . 力学与实践, 2000, 22( 2): 1- 5.
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相似文献/References:

[1]钱元,张点,周光明,等.碳-玻纤维混杂正交三向复合材料力学性能研究[J].南京理工大学学报(自然科学版),2012,36(01):158.
 QIAN Yuan,ZHANG Dian,ZHOU Guang-ming,et al.Investigation of Mechanical Properties for Three-dimensional Orthogonal Woven Glass-carbon Hybrid Composites[J].Journal of Nanjing University of Science and Technology,2012,36(06):158.

备注/Memo

备注/Memo:
基金项目: 2005年度科技部科研院所专项基金 作者简介: 赵谦( 1962- ), 男, 安徽当涂人, 研究员, 博士生, 主要研究方向: 纤维复合增强材料研究与应用, Ema i:l qzhao@ fiberg lassch ina. com; 通讯作者: 王善元( 1937- ), 男, 教授, 博士生导师, 主要研究方向: 纺织材料的性能和加工, 纤维增强复合材料, E-mail: shyu@ dhu. edu. cn。
更新日期/Last Update: 2007-12-30