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复合材料内多处横向冲击损伤的光纤图像检测

MULTI POSITION TRANSVERSE IMPACT DAMAGE DETERMINATION WITHIN COMPOSITE LAMINATES BY FIBRE OPTIC IMAGE RECONSTRUCTIONS 1)

  • 摘要: 基于埋设在复合材料层板中的多方位多模光纤网络的特点,提出了检测层板内部发生多处横向冲击损伤的重构算法.根据光纤损伤图像检测系统获得的图像信号,可实时、定量、直观重构并显示出层板内部各处损伤的位置和各处的损伤程度.在复合材料多点冲击损伤检测试验中,屏幕显示的损伤图示与对半透明试件同时做反向照明检测的结果相一致,证实了重构结果的正确性

     

    Abstract: By now the multi model fibre optic network embedded in composite laminates for damage detection in which fibre optic bundles are arranged in quadrature or in one direction can only qualitatively show the approximate range of damage. In order to display structural damages accurately and quantitatively, we draw into the concept of reconstruction, as well as the fibre optic damage image processing method, to form a new algorithm for the multi places damage determination within composite laminates. The fibr...

     

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