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Analyzing the effect of fiber reinforcement on properties of syntactic foams

机译：分析纤维增强对复合泡沫性能的影响

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摘要

Interest in fiber-reinforced hollow particle filled composites (syntactic foams) is increasing in recent times and several experimental studies are available evaluating mechanical properties of such composites. The present study uses numerical simulations to evaluate the effect of the presence of fibers on the modulus and the stress distribution in syntactic foams. The numerical results show a close match with the experimental data obtained from a published study. It is observed that in composites containing thin-walled hollow particles the maximum stress is located in the particle wall, whereas increasing the wall thickness results in shifting the location of maximum stress to the fiber. The study provides an insight into the use of particle wall thickness in controlling the properties of fiber-reinforced hollow particle composites.
机译：近年来，对纤维增强的中空颗粒填充复合材料（等规泡沫塑料）的兴趣不断增长，并且已有一些实验研究可以评估此​​类复合材料的机械性能。本研究使用数值模拟来评估纤维的存在对句法泡沫中模量和应力分布的影响。数值结果显示与从已发表的研究中获得的实验数据非常匹配。观察到，在包含薄壁空心颗粒的复合材料中，最大应力位于颗粒壁中，而壁厚的增加导致最大应力的位置转移到纤维上。该研究提供了对使用颗粒壁厚控制纤维增强空心颗粒复合材料性能的见解。

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  • 来源
    《Materials Science and Engineering》 |2010年第23期|p.6422-6428|共7页
  • 作者

    Nguyen Q. Nguyen; Nikhil Gupta;

  • 作者单位

    Design & Manufacturing Institute, Department of Mechanical Engineering, Stevens Institute of Technology, Hoboken, NJ 07030, United States;

    rnComposite Materials and Mechanics Laboratory, Department of Mechanical and Aerospace Engineering, Polytechnic Institute of New York University, Brooklyn,NY 11201, United States;

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  • 正文语种 eng
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  • 关键词

    finite element method; cellular materials; composites;

    机译：有限元法蜂窝材料;复合材料;

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