@inproceedings{25d4c17f16e14bc39e56e569893b6a5c,
title = "3D delamination patch detection in laminate composites with an novel NDE technique",
abstract = "Interferometric type fiber optic sensors have advantages of high sensitivity and can be employed to measure very small measurand. In this paper, a 3×3 coupler based demodulation using software approach is introduced and its advantages are presented. Based on this technique, mechanical tests are performed and the sensing arm of the interferometer is embedded along the neutral plane of the laminate. A quasi-impulse loading is applied and the total elongation of the embedded optical fiber is measured as a function of load position. When a delamination is present, the shift of neutral axis position can be clearly reflected in the fiber integral strain versus load position plot. Experimental results demonstrate the feasibility of detecting both the size and location of delamination patch with the proposed technique.",
keywords = "3×3 Coupler Based M-Z Interferometer, Delamination, Laminate composite, Optic fiber",
author = "Ying Xu and Biqin Dong and Yi Jiang",
year = "2012",
language = "English",
isbn = "9788888785332",
series = "ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials",
publisher = "European Conference on Composite Materials, ECCM",
booktitle = "ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials",
note = "15th European Conference on Composite Materials: Composites at Venice, ECCM 2012 ; Conference date: 24-06-2012 Through 28-06-2012",
}