Abstract
The lifetime of silica optical fiber under stress is usually estimated by extrapolating from accelerated laboratory tests using the subcritical crack growth model for fatigue. Such estimates are of dubious reliability since it has not been demonstrated that weak fibers contain well defined cracks and high strength 'pristine' fibers are certainly crack free. This paper discusses the difficulties in applying the subcritical crack growth model to silica fiber and reviews work in the Rutgers FOMRP aimed at improving the understanding of the fatigue mechanisms. Recent results for the fatigue of pristine fiber in various environments are presented that are indicative of possible strength degrading mechanisms. In addition, an indentation model for the behavior of weak fibers is described.
| Original language | English (US) |
|---|---|
| Pages | 183-191 |
| Number of pages | 9 |
| State | Published - 1990 |
| Event | Proceedings of the 2nd Annual Broadband Exposition and the 14th Fiber Optic Communications and Local Area Networks Exposition - BROADBAND '90 - Baltimore, MD, USA Duration: Sep 24 1990 → Sep 28 1990 |
Other
| Other | Proceedings of the 2nd Annual Broadband Exposition and the 14th Fiber Optic Communications and Local Area Networks Exposition - BROADBAND '90 |
|---|---|
| City | Baltimore, MD, USA |
| Period | 9/24/90 → 9/28/90 |
All Science Journal Classification (ASJC) codes
- General Engineering