Projects per year
Abstract
The primary load-bearing component in a composite material is the reinforcing fibres. This paper reports on a technique to study the fracture of individual reinforcing fibres or filaments in real-time. Custom-made small-diameter optical fibres with a diameter of 12 (±2) micrometres were used to detect the fracture of individual filaments during tensile loading of unreinforced bundles and composites. The unimpregnated bundles were end-tabbed and tensile tested to failure. A simple technique based on resin-infusion was developed to manufacture composites with a negligible void content. In both cases, optical fibre connectors were attached to the ends of the small-diameter optical fibre bundles to enable light to be coupled into the bundle via one end whilst the opposite end was photographed using a high-speed camera. The feasibility of detecting the fracture of each of the filaments in the bundle and composite was demonstrated. The in-situ damage detection technique was also applied to E-glass bundles and composites; this will be reported in a subsequent publication.
Original language | English |
---|---|
Article number | 615 |
Journal | Sensors |
Volume | 16 |
Issue number | 5 |
Early online date | 28 Apr 2016 |
DOIs | |
Publication status | Published - 1 May 2016 |
Keywords
- Damage detection
- Fibre fracture
- Optical fibre sensors
- Self-sensing
- Structural health monitoring
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Atomic and Molecular Physics, and Optics
- Analytical Chemistry
- Biochemistry
Fingerprint
Dive into the research topics of 'Self-sensing composites: In-situ detection of fibre fracture'. Together they form a unique fingerprint.Projects
- 1 Finished
-
Self-Sensing Fibre Reinforced Composites: A Novel Technique for Process and Structural Health Monitoring
Engineering & Physical Science Research Council
1/10/05 → 31/08/09
Project: Research Councils