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Influence of low temperatures on the phenomenon of delamination of mode I fracture in carbon-fibre/epoxy composites under fatigue loading

机译:低温对疲劳载荷作用下碳纤维/环氧树脂复合材料Ⅰ型断裂分层现象的影响

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摘要

This paper, analyses the mode I fracture behaviour under fatigue loading of two aircraft quality composites at different test temperatures. The materials under study are made of the same unidirectional carbon fibre but employ a different epoxy resin matrix. Both composites had the same symmetric configuration [0°]_(16/s). In the analysis, double cantilever beam specimens were tested at different temperatures: 20 ℃ (room temperature), 0 ℃, -30 ℃ and -60 ℃ (different estimated in-flight temperatures aircraft). A frac-tographic study was carried using a scanning electron microscope (SEM) on samples extracted from specimens previously tested at the different test temperatures in order to analyse their fracture surfaces.
机译:本文分析了两种飞机质量复合材料在不同测试温度下的疲劳载荷下的I型断裂行为。研究中的材料由相同的单向碳纤维制成,但使用不同的环氧树脂基体。两种复合材料具有相同的对称构型[0°] _(16 / s)。在分析中,对双悬臂梁样品在不同温度下进行了测试:20℃(室温),0℃,-30℃和-60℃(不同的估计飞行中飞机温度)。使用扫描电子显微镜(SEM)对从先前在不同测试温度下测试过的样品中提取的样品进行了分形研究,以分析其断裂表面。

著录项

  • 来源
    《Composite Structures》 |2014年第6期|188-193|共6页
  • 作者单位

    Department of Construction and Manufacturing Engineering, University of Oviedo, Edificio Departamental Oeste n°7, Campus de Viesques, 33203 Gijon, Spain;

    Department of Construction and Manufacturing Engineering, University of Oviedo, Edificio Departamental Oeste n°7, Campus de Viesques, 33203 Gijon, Spain;

    Department of Materials Science and Metallurgical Engineering, University of Oviedo, Edificio Departamental Este, Campus de Viesques, 33203 Gijon, Spain;

    Department of Construction and Manufacturing Engineering, University of Oviedo, Edificio Departamental Oeste n°7, Campus de Viesques, 33203 Gijon, Spain;

  • 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

    Composite; Epoxy; Mode Ⅰ; Low temperature;

    机译:综合;环氧;模式Ⅰ;低温;

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