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首页> 外文期刊>Composite Structures >Comprehensive analysis of in-plane tensile characteristics of thin carbon/ aramid hybrid composites using experimental and RVE- based numerical study
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Comprehensive analysis of in-plane tensile characteristics of thin carbon/ aramid hybrid composites using experimental and RVE- based numerical study

机译：基于实验性和RVE的数值研究综合分析薄碳/芳纶杂交复合材料的平面拉伸特性

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摘要

The phenomenal growth in the developments of micro/mini Unmanned Aerial Vehicles needs thin composite materials for its structural applications for weight reduction. As these structures experience high energy loading during their life cycle, the performance improvement of overall failure strain and toughness is deemed compulsory. This study investigates the application of woven aramid fabric with thin woven CFRP in enhancing the strain to failure behaviour. In this study, the in-plane tensile properties of hybrid carbon/aramid polymer composite were investigated using experimental test followed by numerical validation. Composite laminates with different hybrid fraction and stacking sequences at the inter-ply level were tested under uniaxial tensile load. The results showed that the stacking sequences and location of high strain materials had evidently influenced the primary and secondary tensile modulus, toughness, failure strains and damage morphology. The numerical simulation was performed in ANSYS Composite Prep-Post module using homogenized materials properties based on the microscale RVE model. The Puck failure criteria with material performance degradation for progressive damage analysis is employed to capture the stress-strain relations. The hybrid samples exhibited significant improvement in the failure strain and energy absorption compared to CFRP. The numerical and experimental data showed a good correlation.
机译：微/迷你空中航空车辆发展的现象增长需要薄的复合材料，以进行其体重减轻的结构应用。由于这些结构在生命周期中经历了高能量负载，因此迫使整体失效应变和韧性的性能提高。本研究研究编织芳族织物在薄编织CFRP中的应用增强菌株对失效行为。在该研究中，使用实验测试研究了杂化碳/芳族聚酰胺聚合物复合物的面内拉伸性能，然后进行数值验证。在单轴拉伸载荷下测试具有不同杂种级分和堆叠序列的复合层压板和层间水平的堆叠序列。结果表明，高应变材料的堆叠序列和位置显着影响了初级和二级拉伸模量，韧性，衰竭菌株和损伤形态。在ANSYS复合预备模块中使用基于MicrossoLize Mattersit性，在ANSYS复合预备模块中进行数值模拟。采用具有材料性能劣化的冰球故障标准进行逐步损伤分析来捕获应力 - 应变关系。与CFRP相比，杂交样品对失效应变和能量吸收的显着改善。数值和实验数据显示出良好的相关性。

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  • 来源
    《Composite Structures》 |2021年第9期|114160.1-114160.10|共10页
  • 作者

    Zachariah Sojan Andrews; Shenoy B. Satish; Pai K. Dayananda;

  • 作者单位

    Manipal Acad Higher Educ Manipal Inst Technol Dept Aeronaut & Automobile Engn Manipal 576104 Karnataka India;

    Manipal Acad Higher Educ Manipal Inst Technol Dept Aeronaut & Automobile Engn Manipal 576104 Karnataka India;

    Manipal Acad Higher Educ Manipal Inst Technol Dept Aeronaut & Automobile Engn Manipal 576104 Karnataka India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hybrid composites; Aramid fibre; Tensile behaviour; RVE model; Puck failure;

    机译：混合复合材料;芳纶纤维;拉伸行为;RVE模型;冰球失败;

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