文章摘要
湿热环境对CFRP层板压缩性能的影响
Hygrothermal Effects on Compression Property of CFRP Laminates
  
DOI:10.16865/j.cnki.1000-7555.2018.08.009
中文关键词: 湿热环境  CFRP层板  压缩性能  断口形貌
英文关键词: hygrothermal environment  CFRP laminates  compression property  fracture morphology
基金项目:中国民航局科技项目(MHRD20140207);中央高校基本科研业务费中国民航大学专项(3122016C011);中国民航大学天津市民用航空器适航与维修重点实验室开放基金;中央高校中国民航大学专项项目(2017QD10S)
作者单位
冯振宇, 马骢瑶, 霍雨佳, 巩天琛, 解 江, 牟浩蕾 中国民航大学 民航民用航空器适航审定技术重点实验室天津 300300 
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中文摘要:
      湿热环境对CFRP层板力学性能产生重要影响。通过加速吸湿试验研究T700/3228层板的吸湿特性,对比分析[0]16及[90]16层板经不同湿热环境处理后的性能退化情况,通过微观结构表征阐述其压缩退化机理。结果表明,随着温度及湿度升高,[90]16层板中的树脂基体在压缩载荷下发生的膨胀与热膨胀及湿膨胀叠加,导致[90]16层板的压缩强度下降;[0]16层板中的纤维在压缩载荷下倾向于随树脂基体发生局部屈曲变形,导致[0]16层板的压缩强度下降。
英文摘要:
      Hygrothermal environment could have important effects on mechanical properties of CFRP laminates. The moisture absorption behavior of T700/3228 composite laminate was researched through moisture absorption tests, the compression performance degradation of [0]16 and [90]16 laminates under different hygrothermal conditions was analyzed, and the compression performance degradation mechanism was described in detail by microstructure characterization. The results show that, with the increasing of temperature and moisture, the compression strength of [90]16 laminates decrease because of the superposition of compression expansion of resin matrix and hygrothermal expansion. The compression strength of [0]16 laminates decreases because of the buckling deformation of resin matrix and fiber under compression loads.
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