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Experimental and numerical analyses on the thermal conductive behaviors of carbon fiber/epoxy plain woven composites

机译：碳纤维/环氧树脂平织复合材料导热性能的实验和数值分析

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摘要

The thermal conductive behaviors of carbon fiber/epoxy plain woven composites along in-plane and out-of-plane (thickness) directions were reported in this paper. The thermal conductivities of the plain woven composites were tested with a self-designed thermal chamber under different temperatures. The multi-scale finite element analyses (FEA) were used to investigate the thermal conductive behaviors of plain woven composites. From the comparisons of the thermal conductive behaviors between the plain woven composites and unidirectional (UD) lamina, the effect of the plain woven preform structure on the thermal conduction was further explained. It was found that the thermal conductivity along fiber axial direction is greater than that along its radial direction, and the thermal conductivities of plain woven composites fall in between those of 0° UD lamina (upper bound) and those of 90° UD lamina (lower bound). The temperature distributions and heat flux transferring pathways are mainly along the yarns' orientation directions. In addition, a simplified unit-cell model was developed to decompose the plain woven unit-cell into the combinations of several UD laminas. The experimental thermal conductivities showed a good agreement with those of FEA. The simplified unit-cell model manifests the feasibility for predicting the thermal conductivity of complex textile structure composites from the UD laminas.
机译：本文报道了碳纤维/环氧平纹复合材料沿面内和面外（厚度）方向的导热行为。用自行设计的热室在不同温度下测试了平纹复合材料的导热系数。多尺度有限元分析（FEA）用于研究平纹复合材料的导热行为。通过比较平纹编织复合材料和单向（UD）薄片之间的导热性能，进一步说明了平纹编织预制件结构对导热的影响。发现沿纤维轴向的热导率大于沿径向的热导率，并且平织复合材料的热导率介于0°UD层（上限）和90°UD层（下限）之间。界）。温度分布和热通量传递路径主要沿着纱线的取向方向。此外，还开发了简化的单元模型，以将平纹编织单元分解为几种UD薄片的组合。实验热导率显示出与FEA的良好一致性。简化的单胞模型显示了从UD薄层预测复杂的纺织结构复合材料导热系数的可行性。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2016年第11期|501-517|共17页
  • 作者

    Kai Dong; Kui Liu; Qian Zhang; Bohong Gu; Baozhong Sun;

  • 作者单位

    College of Textiles, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, China;

    Shanghai Aircraft Manufacturing Co., Ltd., Shanghai, China;

    College of Textiles, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, China;

    College of Textiles, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, China;

    College of Textiles, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai, China;

  • 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

    Plain woven composites; Thermal conductivity; Unidirectional (UD) lamina; Finite element analyses (FEA);

    机译：平纹复合材料;导热系数;单向（UD）薄片;有限元分析（FEA）;

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