Failure Monitoring of E-Glass/Vinylester Composites Using Fiber Grating Acoustic Sensor  

作　　者：A. I. AZMI RAJU G. D. PENG 

机构地区：[1]School of Electrical Engineering and Telecommunications, The University of New South Wales, NSW, 2052, Australia [2]School of Mechanical Engineering, The University of New South Wales, NSW, 2052, Australia [3]Faculty of Electrical Engineering, Universiti Teknologi Malaysia, Skudai, Johor, 81310, Malaysia

出　　处：《Photonic Sensors》2013年第2期184-192,共9页光子传感器（英文版）

摘　　要：This paper reports an application of an optical fiber sensor in a continuous and in situ failure testing of an E-glass/vinylester top hat stiffener （THS）. The sensor head was constructed from a compact phase-shifted fiber Bragg grating （PS-FBG）. The narrow transmission channel of the PS-FBG is highly sensitive to small perturbation, hence suitable to be used in acoustic emission （AE） assessment technique. The progressive failure of THS was tested under transverse loading to experimentally simulate the actual loading in practice. Our experimental tests have demonstrated, in good agreement with the commercial piezoelectric sensors, that the important failures information of the THS was successfully recorded by the simple intensity-type PS-FBG sensor.

关 键 词：Fiber acoustic sensors intensity-type phase-shifted acoustic emission 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置] TN253[自动化与计算机技术—控制科学与工程]