中国民航大学学报 ›› 2021, Vol. 39 ›› Issue (2): 61-64.

• 基础科学 • 上一篇    

胶膜特性对胶螺混合单搭接结构性能的影响

徐 琛,孙永波    

  1. (中国民航大学工程技术训练中心,天津 300300) 
  • 收稿日期:2020-06-29 修回日期:2020-06-29 接受日期:2020-04-13 出版日期:2021-04-10 发布日期:2021-11-27
  • 作者简介:徐琛(1986—),男,甘肃庆阳人,助理工程师,硕士,研究方向为复合材料混合连接性能.

Influences of adhesive film on bonded-bolted hybrid single-lap joints’ performance

XU Chen, SUN Y ongbo    

  1. Engineering and Technology Training Center, CAUC, Tianjin 300300, China
  • Received:2020-06-29 Revised:2020-06-29 Accepted:2020-04-13 Online:2021-04-10 Published:2021-11-27

摘要:

通过 ABAQUS 软件平台建立碳纤维平纹编织布复合材料与金属板材胶螺混合单搭接的结构模型,加入材料损伤判据和刚度衰减准则,实现渐进损伤破坏分析,研究了胶膜厚度,韧性等特性对胶螺混合单搭接结构的强度和刚度的影响规律。结果表明:使用脆性胶膜时,增加厚度可提高该结构的承载性能;使用不同韧性的胶膜对该结构承载性能的提高有相似作用,该计算方法可为复合材料结构的混合单搭接设计提供参考。

关键词: 复合材料, 胶膜, 混合单搭接, 渐进损伤

Abstract: A 3D model of bonded-bolted hybrid single -lap joints contending is established based on ABAQUS, damage criteria and stiffness attenuation criterion are added in order to achieve progressive damage analysis. The model is used to analyze the influences on the structure while the thickness and ductility was altered. Results indicate that applied with brittle adhesive film, thicknessincrease can improve the bearing performance of the structure. Varying degrees of ductile adhesive film could provide similar improvement to the bearing performance of the structure. The proposed calculating methods and conclusions could provide reference to composite structure design.

Key words:  , composites, adhesive film, hybrid single-lap joints, cumulative damage 

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