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单向碳纤维复合材料界面力学性能测试研究

张立峰 王盛 乔伟林 李战 甄婷婷 王映

张立峰, 王盛, 乔伟林, 李战, 甄婷婷, 王映. 单向碳纤维复合材料界面力学性能测试研究[J]. 机械科学与技术, 2019, 38(8): 1296-1300. doi: 10.13433/j.cnki.1003-8728.20180310
引用本文: 张立峰, 王盛, 乔伟林, 李战, 甄婷婷, 王映. 单向碳纤维复合材料界面力学性能测试研究[J]. 机械科学与技术, 2019, 38(8): 1296-1300. doi: 10.13433/j.cnki.1003-8728.20180310
Zhang Lifeng, Wang Sheng, Qiao Weilin, Li Zhan, Zhen Tingting, Wang Ying. Experimental Study on Interface Mechanical Properties of Unidirectional Carbon Fiber Composites[J]. Mechanical Science and Technology for Aerospace Engineering, 2019, 38(8): 1296-1300. doi: 10.13433/j.cnki.1003-8728.20180310
Citation: Zhang Lifeng, Wang Sheng, Qiao Weilin, Li Zhan, Zhen Tingting, Wang Ying. Experimental Study on Interface Mechanical Properties of Unidirectional Carbon Fiber Composites[J]. Mechanical Science and Technology for Aerospace Engineering, 2019, 38(8): 1296-1300. doi: 10.13433/j.cnki.1003-8728.20180310

单向碳纤维复合材料界面力学性能测试研究

doi: 10.13433/j.cnki.1003-8728.20180310
基金项目: 

中央高校基本科研业务费项目中国民航大学专项项目 3122018C007

详细信息
    作者简介:

    张立峰(1983-)讲师, 博士, 研究方向为复合材料界面力学, 复合材料加工, zhanglifeng@tju.edu.cn

  • 中图分类号: TB332

Experimental Study on Interface Mechanical Properties of Unidirectional Carbon Fiber Composites

  • 摘要: 编织陶瓷基复合材料由于复杂的纤维编织结构,其界面力学性能测试与表征较困难。为了研究编织复合材料的界面力学性能,探明应力作用下的界面失效机制,本文设计并制备了单向模型复合材料,开展相关单纤维压出的微纳实验。结果表明,C/SiC采用PyC界面时,其界面剪切强度约为35 MPa。通过对纤维的压出过程进行分析,揭示了载荷作用下的裂纹萌生及扩展规律。课题研究不仅对拓展复合材料的应用具有重要的经济意义,而且可为复合材料界面力学与断裂力学的研究提供一定的理论和实验支撑。
  • 图  1  单向陶瓷基复合材料C/SiC制备过程原理图

    图  2  单向C/PyC/SiC复合材料显微形貌图

    图  3  单纤维压出实验原理图

    图  4  典型的压头位移-载荷曲线

    图  5  单纤维压出试验效果图

    图  6  试件厚度对界面强度测试的影响

    表  1  T300型碳纤维力学性能参数表

    参数名称 数值及单位
    径向杨氏模量/GPa 15
    轴向杨氏模量/GPa 230
    轴向剪切模量/GPa 27
    径向剪切模量/GPa 7
    轴向泊松比 0.013
    纤维直径/μm 3.5
    径向热膨胀系数/(℃-1) 12×10-6
    轴向热膨胀系数/(℃-1) -0.7×10-6
    下载: 导出CSV

    表  2  纤维压出试验方案参数表

    类型 实验参数
    压入仪器 Nano Indenter G200
    加载方式 静态加载
    控制方式 载荷控制
    最大载荷 100 mN
    加载速度 0.2 mN/s
    卸载速度 100 nm/s
    压头种类 Berkovich三棱锥金刚石压头
    试验种类 I纤维压出
    试件厚度 50, 60, 70, 80, 90, 100 μm
    下载: 导出CSV
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出版历程
  • 收稿日期:  2018-09-21
  • 刊出日期:  2019-08-05

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