18 November 1993 Accelerated static fatigue behavior of optical glass fibers
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Proceedings Volume 1973, Passive Fiber Optic Components and Their Reliability; (1993) https://doi.org/10.1117/12.163769
Event: Video Communications and Fiber Optic Networks, 1993, Berlin, Germany
Optical glass fibers can exhibit an accelerated static fatigue behavior at long times under moderate stresses. Similarly, optical fibers can exhibit a pronounced strength degradation due to zero-stress aging. The onset of significant strength loss due to zero-stress aging in water occurs at about the same time as the static fatigue transition. The two-point bending static fatigue and zero-stress aging behaviors of two commercial telecommunications fibers were measured at 85 degree(s)C in water immersion and in 60% and 85% r.h. In tests extending out to 680 days, neither fiber has shown evidence of a transition occurring in relative humidity. Similarly, both fibers show modest changes in their two-point bending strength after aging for 1.5 years in the same humidity environments. A model was developed which accounts for the simultaneous effects of zero-stress aging and stress corrosion on crack growth. This model can be used to predict the occurrence of the static fatigue transition, and was applied to both the 85 degree(s)C water immersion and the 85 degree(s)C, 85% r.h. data.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Enrique Cuellar, Michael T. Kennedy, Daniel R. Roberts, and John E. Ritter "Accelerated static fatigue behavior of optical glass fibers", Proc. SPIE 1973, Passive Fiber Optic Components and Their Reliability, (18 November 1993); doi: 10.1117/12.163769; https://doi.org/10.1117/12.163769

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