PREDICTION OF TIME TO FAILURE FOR OPTICAL FIBERS UNDER THERMO-MECHANICAL STRESSES

Considering measurement accuracies, different models used for the prediction of long-term static fatigue for optical fibres under stress were studied. Optical fibres were wound onto an alumina mandrel with various diameters and immersed in hot water at different temperatures. The determination of mo...

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Bibliographic Details
Published in:International Journal of Mechatronics & Applied Mechanics 2023, Vol.I (13), p.16-19
Main Authors: El Abdi, R, Pinto, R Leite
Format: Article
Language:English
Subjects:
Corrosion
Crack propagation
Creep rupture strength
Diameters
Failure
Humidity
Mean time to failure
Model accuracy
Optical fibers
Temperature
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Summary:Considering measurement accuracies, different models used for the prediction of long-term static fatigue for optical fibres under stress were studied. Optical fibres were wound onto an alumina mandrel with various diameters and immersed in hot water at different temperatures. The determination of model parameters was based on the fit of experimental data to model expressions relating time to failure, applied stress and environmental conditions. It is shown that the differences in allowed stress predictions between models become quite close at short times. The time-to-failure depends on the applied stress applied but also and above all on the ageing temperature and the humidity level. Results from tested fibres indicate a clear strength reduction with increasing temperature or applied stress.
ISSN:2559-4397
2559-6497
DOI:10.17683/ijomam/issue13.2