Structural Health Monitoring (HMS) of composite materials using Chirped Fiber Bragg Grating (CFBG) sensors

复合材料在许多应用中正在快速取代金属部件，提供更轻的重量、更高的比强度、良好的振动阻尼、更高的疲劳寿命以及更高的耐磨性、蠕变性、腐蚀性和温度变化性等优点。还可以制造更大和更复杂的部件，其中涉及更少的连接和紧固元件。尽管复合材料具有优势，但由于在面外方向缺乏增强，复合材料容易失效，其中冲击力可能导致严重损坏。制造和组装步骤中的缺陷可能导致各种故障模式。对基于传感器的实时结构健康监测（SHM）系统的需求很高。啁啾光纤布拉格光栅（CFBG）传感器可以放置在复合材料中，用于动态测量各个点处的应变和振动。CINDTECHS开发了希达软件（分层数据 审计员）使用FBF传感器数据作为输入来检测复合材料中的故障。希达使用最新的复合材料和实体建模和FEM来检测故障及其模式。然而，算法和软件性能需要通过实际的CFBG传感器的开发和集成以及与真实的部件的运行实验来评估。这些是目前Engage提案的主要目标，这将导致CINDTECH最终产品ADROIT（自主和动态鲁棒光实现跟踪器）的完成和验证，该产品可在短期内应用于风力涡轮机应用，长期应用于航空航天和汽车行业。在这种伙伴关系中，Ahmadi教授的研究小组的经验和先进的生物机电一体化和机器人实验室的设施，以及光纤开发设施， 卡尔顿将被用来实现预期目标。

Composite materials are fast replacing metallic components in numerous applications, offering lighter weight, higher specific strength, good vibrational damping, higher fatigue life, and higher resistance to wear, creep, corrosion and temperature variations, among other advantages. It is also possible to manufacture larger and more complex parts with less joining and fastening elements involved. Despite their advantages, composite materials are susceptible to failures due to the lack of reinforcement in the out-of-plane direction, where impact forces can cause critical damage. Flaws in manufacturing and assembly steps could cause various modes of failure. There is a high demand for real-time sensor-based Structural Health Monitoring (SHM) systems. Chirped Fiber Bragg Grating (CFBG) sensors may be placed in the composites for dynamic measurement of strains and vibrations at various points. CINDTECHS has developed HiDA software (Hierarchical Data Auditor) to detect failures in composites using FBF sensor data as an input. HiDA uses latest composite material and solid modelling and FEM to detect failures and their modalities. However, the algorithms and software performance need to be evaluated via development and integration of actual CFBG sensor and running experiments with real parts. These are the main goals of the current Engage proposal and which will lead to completion and validation of CINDTECH's final product ADROIT (Autonomous & Dynamically Robust Opto-Implemented Tracker), which can be applied to wind-turbine applications in short-term and aerospace and auto-industry in longer term. In this partnership, Professor Ahmadi's research group experience and facilities at Advanced Biomechatronics and Robotics Laboratory, and fiber optic development facilities at Carleton will be used to achieve the intended goals.