Fiber Optic Sensors for Strength Evaluation and Early Warning of Impending Failure in Structural Components

本研究的主要目的是开发和测试光纤应变和应力传感器系统，用于在线、准确和实时监测结构系统在使用载荷条件下的关键部件。在这项拟议的研究中，罗格斯大学土木工程系和光纤材料研究项目中心（formrp）的联合资源将致力于开发和实施离散和连续光纤应变/应力传感器，用于检测和警告混凝土和钢结构即将发生的结构故障。在混凝土结构部件的情况下，传感器系统将在嵌入式（内部）和暴露（外部）条件下进行评估；后者附着在现有结构上，前者在建造过程中嵌入结构中。

The main objective of this proposed research is to develop and test optical fiber strain and stress sensor systems for on-line, accurate, and real-time monitoring of critical components of structural systems under service load conditions. In this proposed research the combined resources of Rutgers' Civil Engineering Department and those of its center for Fiber Optic Material Research Program (FOMRP) will be devoted for development and implementation of both discrete and continuous optical fiber strain / stress sensors for detection and warning of imminent structural failures for both concrete, and steel structures. In the case of concrete structural components, the sensor system will be evaluated under both embedded (internal) and exposed (external) condition; where the latter is attached to existing structures and the former is embedded in the structure during its construction.