航空学报 > 1994, Vol. 15 Issue (12): 1478-1481

复合材料层合结构开口的非对称补强研究

罗小东, 寇长河, 于卫东, 石天路   

  1. 北京航空航天大学飞机设计所, 北京, 100083
  • 收稿日期:1993-08-24 修回日期:1993-12-24 出版日期:1994-12-25 发布日期:1994-12-25

ASYMMETRIC SUBMERGED REINFORCEMENT OF COMPOSITE LAMINATES CONTAINING A CIRCULAR HOLE

Luo Xiaodong, Kou Changhe, Yu Weidong, Shi Tianlu   

  1. Beijing University of Aeronautics and Astronautics, Beijing, 100083
  • Received:1993-08-24 Revised:1993-12-24 Online:1994-12-25 Published:1994-12-25

摘要: 中心开口的碳纤维复合材料层板的插层铺设非对称补强进行了孔边应力集中、应变分布、层间应力、损伤和强度特性的实验研究和理论分析,结果表明,本文采用的插层铺设非对称补强方式与顺序铺设补强方式相比,具有明显优异的补强效率,并能达到或超过对称补强的效率。

关键词: 复合材料, 复合结构, 开口, 增强板

Abstract: he effect of asymmetric submerged reinforcement on graphite epoxy composite laminates containing a hole was investigated analytically and experimentally on strain,stress concentration,damage and ultimate strength.A 3-D plate local/global finite element method was developed to analyse the response of reinforced hole laminates.It showed an exeellent effi-ciency of asymmetric submerged reinforcement,compared with the asymmetric separate rein-forcement,and also with the asymmetric separate reinforcement.

Key words: composite materials, composite structures, openings, reinforced plates

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