In-situ monitoring of braided composite tubes with optical fibres and piezoelectric sensors

Neha Chandarana, Sree Shankhachur Roy, Emmanuel Ramasso, Constantinos Soutis, Prasad Potluri, Matthieu Gresil

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther


In this work, damage monitoring is achieved by embedding a 10-metre long distributed optical fibre sensor (DOFS) between a thin shell composite tube and subsequent layers of over-braiding. The DOFS provides in situ, discrete strain measurements along its length, allowing full-field monitoring of the braiding, resin infusion, and curing processes. Piezoelectric wafer active sensors (PWAS) surface mounted on the cured composite tube facilitate acoustic emission (AE) monitoring during quasi-static flexural loading of the tube. The two sensing methods combined enable the early detection and recording of damage events in the tube, in real-time, while application of a clustering algorithm to AE data a posteriori shows potential in the classification of signals according to different damage mechanisms.

Original languageEnglish
Title of host publication22nd International Conference on Composite Materials, ICCM 2019
Publication statusPublished - 2019
Externally publishedYes
EventInternational Conference on Composite Materials 2019 - Melbourne, Australia
Duration: 11 Aug 201916 Aug 2019
Conference number: 22nd (Proceedings)


ConferenceInternational Conference on Composite Materials 2019
Abbreviated titleICCM 2019
Internet address


  • Acoustic emission
  • Braiding
  • Clustering
  • Optical fibres
  • Structural health monitoring

Cite this