复合材料科学与工程 ›› 2019, Vol. 0 ›› Issue (11): 69-73.

• 应用研究 • 上一篇    下一篇

预埋碳纳米纸增强CFRP层合板弯曲性能分析

王萌1, 王共冬1,2*   

  1. 1.沈阳航空航天大学航空宇航学院,沈阳 110136;
    2.沈阳航空航天大学航空制造工艺数字化国防重点实验室,沈阳 110136
  • 收稿日期:2019-01-21 出版日期:2019-11-28 发布日期:2019-11-28
  • 通讯作者: 王共冬(1979-),男,博士,教授,研究方向为复合材料数字化制造,cadcam119@126.com。
  • 作者简介:王萌(1997-),女,硕士研究生,研究方向为复合材料钻削加工。
  • 基金资助:
    辽宁省教育厅基金(L201734);辽宁省博士启动基金重点项目(20170520019)

STUDY ON FLEXURAL PROPERTIES OF CFRP LAMINATED PLATE REINFORCED BY EMBEDDED CARBON CNTS BUCKYPAPER

WANG Meng1, WANG Gong-dong1,2*   

  1. 1.Aerospace Academy, Shenyang Aerospace University, Shenyang 110136, China;
    2.Key Laboratory of Fundamental Science for National Defence of Aeronautical Digital Manufacturing Process, Shenyang Aerospace University, Shenyang 110136, China
  • Received:2019-01-21 Online:2019-11-28 Published:2019-11-28

摘要: 为了研究碳纤维增强复合材料的弯曲性能,本文采取层间预埋碳纳米纸的方法制备CFRP层合板,进行三点弯曲加载下的静力实验,通过分析弯曲应力-应变曲线以及对比试件弯曲极限载荷,研究碳纳米纸以及固化压力对CFRP弯曲性能的影响。研究结果表明:预埋碳纳米纸能够有效增强CFRP的弯曲强度以及极限弯曲承载能力;固化压力的提高可增强预埋碳纳米纸CFRP的机械性能,固化压力为2 MPa时达到最佳增强效果。

关键词: 预埋碳纳米纸, CFRP, 三点弯曲, 机械性能

Abstract: In order to study the bending properties of carbon fiber reinforced composites, CFRP laminates were prepared by pre-buried carbon nanosheets. The static experiments under three-point bending loading were carried out. The bending stress-strain curves and bending limits of the specimens were analyzed to study the effect of carbon nanopaper and curing pressure on CFRP bending properties. The results show that the pre-embedded CNTs buckypaper can effectively enhance the CFRP bending strength and ultimate bending load-bearing capacity. The curing pressure can enhance the mechanical properties of the pre-embedded CNTs buckypaper CFRP, and the best strengthening effect is achieved when the curing pressure is 2 MPa.

Key words: embedded CNTs buckypaper, CFRP, three-point bending, mechanical properties

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