介绍了一种在超声回弹波频谱分析基础上用光纤干涉仪来检测Ⅰ形复合材料梁腹板/翼缘连接处分层的方法,利用超声发射器在Ⅰ形梁中产生应力波,用表面粘贴的光纤干涉仪来接收应力波产生的输出信号,对此信号进行频谱分析可找到Ⅰ形梁的分层位置.理论分析和实验都表明了此方法探测复合材料梁腹板/翼缘连接处分层的可行性.
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