航空学报 > 1998, Vol. 19 Issue (2): 159-163

应用光纤图像定量分析复合材料内部的损伤域和损伤度

徐宁光, 孙良新, 黄晗松   

  1. 南京航空航天大学飞行器系
  • 收稿日期:1997-06-11 修回日期:1997-08-21 出版日期:1998-04-25 发布日期:1998-04-25

QUANTITATIVE DETERMINATION OF IMPACT DAMAGE REGION AND DAMAGE EXTENTS IN COMPOSITE MATERIALS BY FIBRE OPTIC IMAGE

Xu Ningguang, Sun Liangxin, Huang Hansong   

  1. Department of Aircraft Engineering , Nanjing University of Aeronautics and Astronautics, Nanjing , 210016
  • Received:1997-06-11 Revised:1997-08-21 Online:1998-04-25 Published:1998-04-25

摘要:

提出了基于光纤图像的复合材料结构内部损伤区域重构方法,根据光纤网络在结构中的排布方式和位置,可定量分析结构损伤域的形状和域内各处的损伤度。层板冲击损伤检测实验中,对所得的离散型损伤度数据进行插值处理,获得的损伤度图形与对半透明复合材料做反向照明的结果吻合,证明了本文方法的有效性。

关键词: 复合材料, 结构损伤, 光导纤维, 图像处理, 重构

Abstract:

An approach is given to the damage region reconstruction within composite structures based on fibre optic image. According to the arrangements and the positions of the fibre optic detecting network, one may quantitatively analyse the shape of the damage region and extents in the structure. The damage extent figure obtained from interpolation of discrete reconstructional data coincides well with the backlighting outcome through semi translucent composites. The result of impact tests on laminates proves the effectiveness of this method.

Key words: composite materials, structure damage, fibre optic, image processing, reconstruction

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