Hostname: page-component-54dcc4c588-b5cpw Total loading time: 0 Render date: 2025-10-11T23:13:22.952Z Has data issue: false hasContentIssue false
  • English
  • Français

A New Approach to Evaluate the Delayed Fracture Behavior of an Optical Glass Fiber

Published online by Cambridge University Press:  26 February 2011

M. Muraoka  and
H. AbÉ
M. Muraoka
Affiliation:
Tohoku University, Dept. of Mechanical Engineering, Sendai 980, Japan
H. AbÉ
Affiliation:
Tohoku University, Dept. of Mechanical Engineering, Sendai 980, Japan
Get access

Abstract

The method for the direct measurement of subcritical crack growth in silica optical fiber with 125μm in diameter was developed. The obtained crack velocity da/dt as a function of stress intensity factor KI was expressed by means of log da/dt vs log KI linear relation with slope n. The obtained value of n showed 22.6 (25 °C,60%r.h.) with small standard deviation 0.7. These results indicate that the postulated crack growth law used for the lifetime prediction is valid and the present approach can solve the problem in the conventional method for evaluating the value of n where the evaluated value has been widely scattered.

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

1. Kalish, D. and Tariyal, B.K., J. Am. Ceram. Soc. 61(11/12),518(1978).Google Scholar
2. Ritter, J.E. Jr, Sullivan, J.M. Jr, and Jakus, K., J. Appl. Phys. 49(9), 4779(1978).Google Scholar
3. Mitsunaga, Y., Katsuyama, Y., Kobayashi, H., and Ishida, Y., Trans. IECE Japan,Part B (in Japanese) J66-B(7),829(1983).Google Scholar
4. Sakaguchi, S., Sawaki, Y., Abe, Y., and Kawasaki, T., J. Mater. Sci. 17(10), 2878(1982).Google Scholar
5. Muraoka, M. and Abé, H., Proc. of Int. Conf. on Advanced Mechatronics, May 21-24,1989,Tokyo,Japan, 483(1989).Google Scholar
6. Nishitani, H. and Chen, D.H., in Stress Intensity Factors Handbook, edited by Murakami, Y. (Pergamon Press, 1987) pp.654–656.Google Scholar
7. Wiederhorn, S.M. and Bolz, L.H., J. Am. Ceram. Soc. 53(10),543(1970).Google Scholar