EXPERIMENTAL STUDY ON THE INFLUENCE OF APPLIED ELECTRIC FIELD ON THE MODULUS OF RUPTURE OF PZT/COMPOSITE LAMINATES
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摘要: 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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关键词:
- PZT复合材料层合板 /
- 破坏强度 /
- AE测试系统
Abstract: The three-point test was carried out to test the modulus of rupture of PZT composite laminates. It is evident that the positive electric field can improve the modulus of rupture of PZT composite laminates but the negative one can decrease its modulus of rupture. A setup of in-situ AE measuring system was established to determine the different damage models of PZT composite laminates during the process of loading, and the damage model of PZT composite laminates was also verified by the scanning acoustic microscopic images.-
Key words:
- PZT composite laminate /
- modulus of rupture /
- AE measuring system
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