首页> 外文会议>Conference on Reliability of Optical Fiber Components, Devices, Systems, and Networks Oct 28-29, 2002 Brugge, Belgium >Environmental effects on fatigue and lifetime predictions for silica optical fibers
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Environmental effects on fatigue and lifetime predictions for silica optical fibers

机译:环境对石英光纤疲劳和寿命预测的影响

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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 lifetime predictions are very sensitive to the value of n and the kinetic form, it is important to know which form is correct. It is shown that the empirical power law form that is almost exclusively used by the fiber optics industry provides a good fit to fatigue data for high strength fiber, but an exponential form provides a more self-consistent description of fatigue in different environments.
机译:本文综述了熔融石英光纤的强度和疲劳度对环境参数温度,湿度和pH值的依赖性。结果表明,应力腐蚀参数n不是一个常数,而是取决于环境的性质。此外,应力腐蚀动力学的不同动力学形式导致对实验结果的不同解释。由于寿命预测对n的值和动力学形式非常敏感,因此重要的是要知道哪种形式是正确的。结果表明,光纤行业几乎专门使用的经验幂定律形式可以很好地拟合高强度纤维的疲劳数据,而指数形式则可以更自洽地描述不同环境下的疲劳。

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