Progressive failure monitoring of E-glass/vinylester curve composites using embedded FBG sensors

Asrul Izam Azmi; Raju Raju; Gang-Ding Peng

doi:10.1117/12.914757

30 January 2012 Progressive failure monitoring of E-glass/vinylester curve composites using embedded FBG sensors

Asrul Izam Azmi, Raju Raju, Gang-Ding Peng

Proceedings Volume 8351, Third Asia Pacific Optical Sensors Conference; 835138 (2012) https://doi.org/10.1117/12.914757
Event: Asia Pacific Optical Sensors Conference, 2012, Sydney, Australia

Abstract

In this paper, we report our recent work in an application of fiber Bragg grating (FBG) sensors in progressive failure monitoring of E-glass/vinylester top-hat stiffener (THS) composites. FBG sensor arrays were embedded at strategic points within the THS to monitor the onset and progress of failure modes as the THS undergone a transverse loading. Techniques to embed FBGs in-situ during composite structure fabrication are developed. Our experiments demonstrated that key structural failure information can be obtained from the analysis and assessment of data, such as average strain, strain gradient and full spectrum measurements, collected by the embedded FBG sensors.

Citation Download Citation

Asrul Izam Azmi, Raju Raju, and Gang-Ding Peng "Progressive failure monitoring of E-glass/vinylester curve composites using embedded FBG sensors", Proc. SPIE 8351, Third Asia Pacific Optical Sensors Conference, 835138 (30 January 2012); https://doi.org/10.1117/12.914757

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