One of the most critical aspects of composite materials is their vulnerability to impact loadings. In recent years, Structural Health Monitoring (SHM) systems have been developed to continuously watch over on the event of an impact and so monitor the health status of the structure. However, this technique needs the integration of sensors in the composite laminate, like Fiber Bragg Grating or piezoelectric ceramic transducers, which often can dramatically reduce the inherent strength of the hosting material. The aim of this work is the integration of the composite laminate with a nanostructured piezoelectric sensor, based on PVDF-TrFE nanofibers and aluminum sheets as electrodes. Structurally, the resulting composite is a hybrid laminate known as Glass Laminate Aluminum Reinforced Epoxy (GLARE), consisting of aluminum sheets alternatively bonded to glass-epoxy prepreg layers, functionalized with PVDF-TrFE interleaved nanofibrous mats. Hence, this nanostructured hybrid laminate becomes itself a piezoelectric sensor, capable to detect impacts on its whole surface. Non-destructive impact tests were performed using an instrumented drop-weight tower to investigate the real-time electrical response of the self-sensing laminate. A lumped electric model was applied to study and optimize the circuit electrical parameters. Then, the self-sensing laminate performance were evaluated in terms of linearity and spatial uniformity.

复合材料最关键的方面之一是它们对冲击载荷的脆弱性。近年来，已开发出结构健康监视（SHM）系统，以持续监视撞击事件，从而监视结构的健康状况。但是，此技术需要将传感器集成在复合层压板中，例如光纤布拉格光栅或压电陶瓷换能器，这通常会大大降低基质材料的固有强度。这项工作的目的是将复合层压板与基于PVDF-TrFE纳米纤维和铝片作为电极的纳米结构压电传感器集成在一起。从结构上讲，所得复合材料是一种混合层压板，称为玻璃层压铝增强环氧树脂（GLARE），由铝板或玻璃环氧树脂预浸料层粘合而成，并用PVDF-TrFE交错纳米纤维垫功能化。因此，这种纳米结构混合层压材料本身就是压电传感器，能够检测对其整个表面的撞击。使用仪器式重锤塔进行了无损冲击测试，以研究自感层压板的实时电响应。应用集总电模型来研究和优化电路电参数。然后，根据线性和空间均匀性评估自感层压材料的性能。使用仪器式重锤塔进行了无损冲击测试，以研究自感层压板的实时电响应。应用集总电模型来研究和优化电路电参数。然后，根据线性和空间均匀性评估自感层压材料的性能。使用仪器式重锤塔进行了无损冲击测试，以研究自感层压板的实时电响应。应用集总电模型来研究和优化电路电参数。然后，根据线性和空间均匀性评估自感层压材料的性能。