30 January 2012 Application of fiber grating-based acoustic sensor in progressive failure testing of e-glass/vinylester curve composites
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Proceedings Volume 8351, Third Asia Pacific Optical Sensors Conference; 83511O (2012) https://doi.org/10.1117/12.915922
Event: Asia Pacific Optical Sensors Conference, 2012, Sydney, Australia
Abstract
This paper reports an application of phase shifted fiber Bragg grating (PS-FBG) intensity-type acoustic sensor in a continuous and in-situ failure testing of an E-glass/vinylester top hat stiffener (THS). The narrow transmission channel of the PS-FBG is highly sensitive to small perturbation, hence suitable to be used in an effective 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.
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Asrul Izam Azmi, Raju Raju, Gang-Ding Peng, "Application of fiber grating-based acoustic sensor in progressive failure testing of e-glass/vinylester curve composites", Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 83511O (30 January 2012); doi: 10.1117/12.915922; https://doi.org/10.1117/12.915922
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