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Analysis of multi-directional recycled jute fiber composite behavior using experimental, numerical, and analytical methods.

机译：使用实验，数值和分析方法分析多方向再生黄麻纤维复合材料的性能。

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摘要

Composite materials are increasing in popularity as a material of choice in many engineering applications. Major industries using composites include automotive, construction, and sports equipment. Most of the knowledge, research, and technology that will help decrease the cost of composite materials have been aimed at developing synthetic fibers as the reinforcing constituent.;This thesis characterizes jute fibers obtained as a byproduct from the coffee industry to determine if they can be viable in composite manufacturing. Experimental analysis, finite element analysis, and analytical modeling are used to characterize jute fiber based composites. Experimental analysis consists of jute fiber bundle tensile testing as well as tensile testing of multiple laminates. Finite element and analytical models were developed to simulate different composite characteristics and their influence on jute composites.;Finite element models investigated the influences of fiber undulation, fiber damage, and matrix porosity. Results show that certain manufacturing precautions should be taken to minimize imperfections which have negative influences on the composite. Fiber damage has the largest influence when introduced near the top of the fiber wave and can cause normal stresses to increase 56%. Fiber undulation and matrix porosity also have noticeable influences on the composite.
机译：在许多工程应用中，复合材料作为一种首选材料正日益普及。使用复合材料的主要行业包括汽车，建筑和运动器材。有助于降低复合材料成本的大多数知识，研究和技术都旨在开发合成纤维作为增强成分。本论文对从咖啡行业获得的副产品黄麻纤维进行了表征，以确定它们是否可以在复合材料制造中可行。实验分析，有限元分析和分析模型用于表征黄麻纤维基复合材料。实验分析包括黄麻纤维束拉伸测试以及多层层压板的拉伸测试。建立了有限元模型和解析模型来模拟不同的复合材料特性及其对黄麻复合材料的影响。有限元模型研究了纤维起伏，纤维损伤和基质孔隙率的影响。结果表明，应采取某些制造预防措施以最大程度地减少对复合材料产生负面影响的缺陷。在光纤波的顶部附近引入光纤时，光纤损坏的影响最大，并且可能导致法向应力增加56％。纤维起伏和基质孔隙率也对复合材料产生显着影响。

著录项

  • 作者

    Severson, Patrick M.;

  • 作者单位

    The University of Wisconsin - Milwaukee.;

  • 授予单位 The University of Wisconsin - Milwaukee.;
  • 学科 Engineering General.;Environmental Sciences.;Applied Mechanics.
  • 学位 M.S.
  • 年度 2012
  • 页码 120 p.
  • 总页数 120
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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