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

用于结构部件强度评估和即将发生故障预警的光纤传感器

• 批准号: 9018572
• 负责人: Edward Nawy
• 金额: $ 20.78万
• 依托单位: Rutgers University New Brunswick
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1990
• 资助国家: 美国
• 起止时间: 1990-11-15 至 1994-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9018572&HistoricalAwards=false
• 关键词: Fiber; Optic; Sensors; Strength; Evaluation

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.

这项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， 准确、实时地监控关键组件 在使用荷载条件下的结构系统。 在这项拟议的研究中，罗格斯大学的民间资源 工程部及其光纤中心 材料研究计划（FOMRP）将致力于发展 以及离散和连续光纤的实现 应变/应力传感器，用于检测和警告即将发生的 混凝土和钢结构的结构失效。 在 混凝土结构部件的情况下，传感器系统将 在嵌入式（内部）和暴露式（外部）两种情况下进行评估 条件;后者附在现有结构上， 前者在其建造期间嵌入结构中。