采用三点弯曲方法测量在不同外加电场作用下PZT复合材料层合板的破坏强度(MOR),分析得到了正电场能增强PZT复合材料层合板的破坏强度,而负电场降低了PZT复合材料层合板的破坏强度.本文作者还建立了一套AE测试系统来实时探测在加载过程中由于损伤引起的声信号,进而分析并证实了不同载荷下的PZT复合材料层合板的破坏模式,并用超声扫描成像图加以验证.
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