:: Advanced Composites Letters on-line ABSTRACTS ::

Volume 8, Issue 2, 1999
An Intensity Based Optical Fibre Sensor For Flexural Damage Detection In Woven Composites,

P. S. Uskokovic¹, M. Miljkovic², ,M. Krivokuca³, S. S. Puticl and R. Aleksici⁴

¹Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4,11000 Belgrade, Yugoslavia
²Laboratory for Electron Microscopy, University of Nis, 18000 Nis, Yugoslavia
³Institute of Technical Sciences of the Serbian Academy of Sciences and Arts , Knez Mihajlova 35, 11000 Belgrade, Yugoslavia
ABSTRACT

Flexural deformation of the composite laminate and the integrity of the embedded optical fibres under three-point bending load were monitored. Signal attenuation in optical fibres was used as the damage indicator. The network of the specimen failure was primary dominated by fibre failure, low rate of transverse matrix cracks and internal delamination between two plies close to the tensile side. Scanning electron microscopy (SEM) was performed on the fracture surfaces of the mechanically failed samples to examine the interfaces between the optical fibres and host materials, and showed interface debonding in the acrylate coated system.

© 1999-2001 Advanced Composites Letters. All rights reserved.
No part of the material contained in this site may be copied, reproduced, stored in any form or by any means elsewhere, without the written permission of the editor.