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首页> 外文会议>Israel annual conference on aerospace sciences >Cure Monitoring of Boeing 737 Test-Bed Fuselage Skin Composite Repair Using Optical Fibers Sensing Technique
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Cure Monitoring of Boeing 737 Test-Bed Fuselage Skin Composite Repair Using Optical Fibers Sensing Technique

机译：防治波音737试床机身皮肤复合材料复合修复方法采用光纤传感技术

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摘要

This paper presents a cure monitoring process and service experience of a co-cured bonded composite patch repair applied to a damage on a Boeing 737 fuselage skin. This repair was applied in a location where no standard SRM repair could be adopted. Therefore, to ensure the quality and robustness of the repair, its application process was monitored by embedded fiber- optic Bragg sensors in real time. Such a sensing concept provides real time monitoring of the temperature distribution over the entire patch during the curing process. It also follows the development of the anticipated residual strains, which are induced, for a successful bonding of the composite patch to the aluminum substrate, by the mismatch between the thermal expansion coefficients of the two materials. Tracking these two parameters ensures proper temperature distribution at high spatial resolution, over the entire repair, combined with a quantitative assessment of the structural strength of the bond via the evaluation of the residual strains.
机译：本文介绍了固化粘合复合贴片修复的固化监测过程和服务体验，适用于波音737机身皮肤的损坏。该修复应用于无法采用标准SRM修复的位置。因此，为了确保修复的质量和稳健性，其应用过程是实时嵌入式光纤布拉格传感器监测的。这种感测概念在固化过程中提供了在整个贴片上的温度分布的实时监测。它还遵循在两种材料的热膨胀系数之间的不匹配中，诱导的预期残留菌株的发展，其被诱导，以便将复合贴片成功粘合到铝基板上。跟踪这两个参数可确保在整个修复上的高空间分辨率下进行适当的温度分布，并通过评估残留菌株的定量评估键的结构强度。

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