Strength and fatigue of silica optical fibers

Kurkjian, Charles R.; Krause, J. T.; Matthewson, M. John

doi:10.1109/50.50715

Cited by 193 publications

(93 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Equation (17) therefore suggests that the scatter in the predicted times to failure should be lower for the exponential forms, as is indeed observed in figure 5.…”

Section: Resultssupporting

confidence: 53%

“…However, there have been several studies of the fatigue of weak fiber so that there is more knowledge about the behavior than simply given by the data used here. A review [17] power law exponent, n or n 1 , for weak fibers shows literature values lying between approximately 20 and 40. Although there have been several other studies since that review was published, they have not changed that picture.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Strength-probability-time diagrams using power law and exponential kinetics models for fatigue

Matthewson

2006

SPIE Proceedings

View full text Add to dashboard Cite

Strength-Probability-Time (SPT) diagrams provide an intuitively pleasing method for presenting reliability data based on extrapolations from accelerated fatigue testing data. If power-law crack growth kinetics are assumed the calculations required to generate the SPT diagram are particularly simple. However, if exponential or other more complex forms are used, this is not the case. If the accelerated data are for dynamic fatigue measurements (strength as a function of stressing rate) the SPT diagram can only be determined after numerical integration of the crack growth equations, followed by non-linear regression to the fatigue data. However, we have developed software to perform this task. In this paper we describe the methods used and show sample results of lifetime predictions using SPT diagrams. Also, the effect of using different crack growth kinetics models on predicted lifetimes is discussed.

show abstract

“…Equation (17) therefore suggests that the scatter in the predicted times to failure should be lower for the exponential forms, as is indeed observed in figure 5.…”

Section: Resultssupporting

confidence: 53%

Section: Resultsmentioning

confidence: 99%

Strength-probability-time diagrams using power law and exponential kinetics models for fatigue

Matthewson

2006

SPIE Proceedings

View full text Add to dashboard Cite

show abstract

“…In particular there is no water produced as there is no hydrogen-oxygen. Water is known to attack the surface of fused silica, causing the propagation of surface cracks 46 that reduce strength and reduce thermal noise performance by increasing dissipation. The blowing of a flame across the surface of the fused silica can also cause particulate matter from the air or burners to contaminate the fiber surface.…”

Section: Introductionmentioning

confidence: 99%

Invited Article: CO2 laser production of fused silica fibers for use in interferometric gravitational wave detector mirror suspensions

Heptonstall

Barton

Bell

et al. 2011

Review of Scientific Instruments

View full text Add to dashboard Cite

In 2000 the first mirror suspensions to use a quasi-monolithic final stage were installed at the GEO600 detector site outside Hannover, pioneering the use of fused silica suspension fibers in long baseline interferometric detectors to reduce suspension thermal noise. Since that time, development of the production methods of fused silica fibers has continued. We present here a review of a novel CO 2 laser-based fiber pulling machine developed for the production of fused silica suspensions for the next generation of interferometric gravitational wave detectors and for use in experiments requiring low thermal noise suspensions. We discuss tolerances, strengths, and thermal noise performance requirements for the next generation of gravitational wave detectors. Measurements made on fibers produced using this machine show a 0.8% variation in vertical stiffness and 0.05% tolerance on length, with average strengths exceeding 4 GPa, and mechanical dissipation which meets the requirements for Advanced LIGO thermal noise performance.

show abstract

“…The diffusion of moisture in polymeric and fibre reinforced composite materials has been the subject of numerous studies, and this topic continues to attract considerable attention as absorbed moisture can compromise the mechanical performance of these materials [15]. For example, the diffusion of moisture can lower the glass transition temperature and also result in the degradation of the matrix-dominated properties such as the compressive and interlaminar shear strengths of composites.…”

Section: Introductionmentioning

confidence: 99%

Azobenzene-Based Gel Coated Fibre Bragg Grating Sensor for Moisture Measurement

Moniruzzaman

Rock

2016

International Journal of Polymer Science

View full text Add to dashboard Cite

A fibre Bragg grating sensor is coated with a novel polymer gel in order to investigate its suitability for nondestructive measurement of moisture in materials that can potentially lose their integrity due to moisture ingress. Absorption and desorption of moisture lead to swelling/shrinkage of an azobenzene-based gel, which induces a strain in the Bragg grating resulting in wavelength shifts. The results demonstrated that the amount of wavelength shift is linearly dependent on the amount of water ingress by the gel. The performance of the proposed optical fibre moisture sensor was found to be repeatable with no detectable hysteresis and has the potential to offer a low-cost route for monitoring moisture content.

show abstract

Strength and fatigue of silica optical fibers

Cited by 193 publications

References 46 publications

Strength-probability-time diagrams using power law and exponential kinetics models for fatigue

Strength-probability-time diagrams using power law and exponential kinetics models for fatigue

Invited Article: CO2 laser production of fused silica fibers for use in interferometric gravitational wave detector mirror suspensions

Azobenzene-Based Gel Coated Fibre Bragg Grating Sensor for Moisture Measurement

Contact Info

Product

Resources

About