Lifetime modeling of silica optical fiber in static fatigue test
نویسندگان
چکیده
منابع مشابه
Apparent activation energy of fused silica optical fibers in static fatigue in aqueous environments
Static fatigue of fused silica optical fiber is known to be caused by stress assisted reaction of silica with ambient moisture. Past studies have often been conducted in hot water to accelerate experiments compared with cooler vapor environment. However, changes in the pH of water with temperature has an important influence on the fatigue rate, but has been ignored in the literature. To study t...
متن کاملEnvironmental effects on fatigue and lifetime predictions for silica optical fibers
This paper reviews the dependence of strength and fatigue of fused silica optical fiber on the environmental parameters temperature, humidity and pH. It is shown that the stress corrosion parameter, n, is not a constant but depends on the nature of the environment. Further, different kinetic forms for the stress corrosion kinetics lead to different interpretations of experimental results. Since...
متن کاملEffect of pH on the Strength and Fatigue of Fused Silica Optical Fiber
The fatigue behavior of both bare and polymer coated silica optical fiber has been determined in various buffered pH solutions. Bare and polymer coated fibers were studied to distinguish any coating effects. Numerical integration techniques were utilized to fit the data to three kinetics models, and the fatigue parameters were calculated together with their corresponding confidence ellipses. Th...
متن کاملChemical Kinetics Models for the Fatigue Behavior of Fused Silica Optical Fiber
There have been numerous studies of the fatigue and strength behavior of fused silica optical fibers. However, no coherent model has emerged that self-consistently describes the simultaneous effects of stress, temperature and activity of the corroding species (e.g. water). A power law degradation kinetics model (relating the crack growth rate to the applied stress intensity factor, KI) is widel...
متن کاملIonic effects on silica optical fiber strength and models for fatigue
The strength and fatigue behavior of bulk fused silica is well understood in terms of the growth of microcracks under the combined influence of stress and environmental attack. The behavior of high strength, flaw free silica optical fiber shows significant differences from the bulk material for poorly understood reasons making long term predictions unreliable. It is known that silica fiber stre...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Applied Research and Technology
سال: 2016
ISSN: 1665-6423
DOI: 10.1016/j.jart.2016.06.001