中国民航大学学报

• 工程技术 • 上一篇    下一篇

CFRP 层合板电热损伤温度场及性能研究

王志平,姚佳伟,张国尚,李娜   

  1. (中国民航大学天津市民用航空器适航与维修重点实验室,天津300300)
  • 收稿日期:2013-10-23 修回日期:2013-11-13 出版日期:2014-12-25 发布日期:2014-12-05
  • 作者简介:王志平(1963—),男,辽宁朝阳人,教授,博士,研究方向为航空材料加工与测试.
  • 基金资助:

    中央高校基本科研业务费专项(ZXH2012J002)

Study on temperature field and properties of CFRP electric-thermal damage

WANG Zhi-ping,YAO Jia-wei,ZHANG Guo-shang,LI Na   

  1. (Civil Aircraft Airworthiness and Maintenance Key Lab of Tianjin,CAUC,Tianjin 300300,China)
  • Received:2013-10-23 Revised:2013-11-13 Online:2014-12-25 Published:2014-12-05

摘要:

采用ABAQUS 有限元软件建立了CFRP层合板的匀质实体模型和纤维束-树脂模型,利用热-电耦合模块,分别计算了多种电流制度下稳态表面温度场和内部温度梯度,仿真计算结果与实际测试结果吻合较好;通过CFRP 层合板试样拉伸强度的测试、断面微观形貌的分析以及DSC 热分析,研究了电热损伤对CFRP力学性能和耐热性的影响,研究结果表明:电热损伤对试样的力学性能和耐热性均有较大影响;随着电热温度的提高,CFRP 层合板试样的拉伸强度及耐热性均呈现下降趋势。

关键词: CFRP, 电热损伤, 温度场, 拉伸强度, 耐热性

Abstract:

ABAQUS is used to simulate surface temperature field and temperature gradient of CFRP sample,Which is subjected to DC current by founding the homogenous solid model and the fiber-matrix model. Fine consistency is reached by contrast of the experimental and simulant results. The tensile property test,the observation of fracture surface and the DSC test of CFRP samples are performed to study the electric-thermal damage to mechanical property and heat resistance. The results reveal that with the electric-thermal temperature increasing,the tensile strength,the interfacial bonding strength and the heat resistance decrease.

Key words: CFRP, electric-thermal damage, temperature field, tensile strength, heat resistance

中图分类号: