&lt;title&gt;Lifetime of fiber Bragg gratings under cyclic fatigue&lt;/title&gt;

Mauron, Pascal; Nellen, Philipp M.; Sennhauser, U.; Trutzel, Michael N.; Betz, Daniel; Staudigel, L.; Hagemann, Volker; Rothhardt, Manfred

doi:10.1117/12.372775

Cited by 6 publications

(4 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This finding has strong and positive implications for the long-term reliability of our fused-fiber components. In addition, the n-value of 23.3 obtained here compares favorably to that of 18.1 obtained by Mauron et al 3 for fiber Bragg gratings.…”

Section: Component Reliabilitysupporting

confidence: 87%

See 1 more Smart Citation

Stress corrosion factors of fused fiber components

Cigana¹,

Seguin²

2003

SPIE Proceedings

View full text Add to dashboard Cite

Stress corrosion factors were obtained for the waist region of a fused fiber component using the dynamic fatigue method at ambient temperature and humidity. The n-value obtained is 23.3, which is comparable to that of pristine fiber. The ultimate tensile strength of the waist is much higher than that of the mechanically stripped fiber used to manufacture the components, indicating that flaws and defects are actually repaired during the fusion process. Component lifetime and reliability are estimated.

show abstract

Section: Component Reliabilitysupporting

confidence: 87%

“…The theory of crack propagation is based on a power-law crack growth, and yields the following general lifetime equation 3 :…”

Section: Introduction and Theorymentioning

confidence: 99%

Stress corrosion factors of fused fiber components

Cigana¹,

Seguin²

2003

SPIE Proceedings

View full text Add to dashboard Cite

show abstract

“…Fatigue properties of FBGs have been investigated through some fatigue experiments, 10,12,13 and it was founded that fatigue cracks of FBGs have negative impacts on performances of FBG strain sensors, mainly showing as the distortion of the reflected spectrum. Hence, the reliability problem of the sensors includes two affecting factors, the FBG and the bonding layer.…”

Section: Introductionmentioning

confidence: 99%

Degradation of sensing properties of fiber Bragg grating strain sensors in fatigue process of bonding layers

et al. 2014

View full text Add to dashboard Cite

Bonding layers, serving as the strain transmission mediums, may bring undesirable effects to the sensing properties of fiber Bragg grating (FBG) strain sensors during their fatigue process. To analyze the strain sensitivity and the reflected spectrum of FBG strain sensors in different fatigue stages of bonding layers, their strain sensitivities were derived according to strain transfer models. Resorting to T-matrix formalism, the affected reflected spectra were stimulated. Theoretical analysis results show that there is a gradual decline in the strain sensitivity during the stage of fatigue crack initiation, and that significant distortions emerge in the reflected spectrum during the stage of fatigue crack propagation. In addition, a cyclic loading fatigue test was conducted and the phenomenon observed in the test showed a good agreement with the theoretical prediction. Zhang et al.: Degradation of sensing properties of fiber Bragg grating strain sensors. . . Downloaded From: http://opticalengineering.spiedigitallibrary.org/ on 05/14/2015 Terms of Use: http://spiedl.org/terms

show abstract

“…70 cycles to failure). Mauron et al 8 studied fiber Bragg gratings in tension under cyclic fatigue at 4 Hz and found no cyclic effects. In other work, they did observe cracking of a polyimide coating under cyclic conditions.…”

Section: Introductionmentioning

confidence: 99%

<title>Cyclic fatigue of high-strength optical fibers in bending</title>

Matthewson

Padiyar

2001

SPIE Proceedings

View full text Add to dashboard Cite

Optical fiber may experience cyclic stresses at frequencies ranging from a few hertz in aerial cables to over a kilohertz due to vibration of machinery. The fatigue behavior of brittle materials typically gives times to failure that correspond to a suitably time-averaged applied stress and is independent of the frequency. Previous studies have been limited in the frequencies used but generally show agreement with this simple model. In this paper we describe results for the cyclic fatigue behavior of high strength fused silica optical fibers as a function of stress amplitude and frequency in the range of zero to 100 Hz. The results confirm that fatigue of this material is indeed accurately described by the subcritical crack growth model and the results are shown to be frequency independent in the range studied.

show abstract

<title>Lifetime of fiber Bragg gratings under cyclic fatigue</title>

Cited by 6 publications

References 0 publications

Stress corrosion factors of fused fiber components

Stress corrosion factors of fused fiber components

Degradation of sensing properties of fiber Bragg grating strain sensors in fatigue process of bonding layers

<title>Cyclic fatigue of high-strength optical fibers in bending</title>

Contact Info

Product

Resources

About