The quick development of the smart factory and prognostic and health management (PHM), in the fields of aeronautic, automotive and green energies, is evidencing a need for sensors able to monitor the behavior of composite materials all along their life at the closest of the matter. In situ fabricated conductive polymer nanocomposite (CPC) sensors are bringing an interesting solution to this prospect as they can be integrated homogeneously in the core of composites to probe their deformations and damage. In particular fatigue which is one important mode of failure of polymer composites can be monitored from early signs of damage until the final breakage by analyzing the piezo-resistive response of quantum resistive strain sensors (sQRS) made of carbon nanotubes. We have developed all these aspects in the paper taking the example of a classical glass fibers/epoxy composite instrumented in its core with two sQRS to monitor its short and long term fatigue behavior.

在航空，汽车和绿色能源领域，智能工厂以及预测和健康管理（PHM）的快速发展正显示出对传感器的需求，该传感器能够在最接近生命周期的整个生命周期内监控复合材料的行为。物。原位预制的导电聚合物纳米复合材料（CPC）传感器为这种前景带来了有趣的解决方案，因为它们可以均匀地集成在复合材料的芯中，以探测其变形和损坏。特别地，可以通过分析由碳纳米管制成的量子电阻应变传感器（sQRS）的压阻响应，从损坏的早期迹象到最终破裂来监测疲劳，这是聚合物复合材料失效的一种重要方式。我们以经典玻璃纤维/环氧树脂复合材料为例，在本文中开发了所有这些方面，并在其芯中装有两个sQRS来监控其短期和长期疲劳行为。