Makale detayı · 2017
Monitoring the Damage State of Fiber Reinforced Composites Using an FBG Network for Failure Prediction
- Yıl
- 2017
- ISSN
1996-1944- Tür
- article
Veri kaynağı ayrımı
- YÖKSİS YÖKSİS makale kaydı
- OpenAlex OpenAlex zenginleştirmesi (özet, atıf, konular)
Özet
İngilizce (OpenAlex)
A structural health monitoring (SHM) study of biaxial glass fibre-reinforced epoxy matrix composites under a constant, high strain uniaxial fatigue loading is performed using fibre Bragg grating (FBG) optical sensors embedded in composites at various locations to monitor the evolution of local strains, thereby understanding the damage mechanisms. Concurrently, the temperature changes of the samples during the fatigue test have also been monitored at the same locations. Close to fracture, significant variations in local temperatures and strains are observed, and it is shown that the variations in temperature and strain can be used to predict imminent fracture. It is noted that the latter information cannot be obtained using external strain gages, which underlines the importance of the tracking of local strains internally.
Konular
- Advanced Fiber Optic Sensors
- Structural Health Monitoring Techniques
- Ultrasonics and Acoustic Wave Propagation
Birincil konu Advanced Fiber Optic Sensors