3D Characterization of the Refractive-Index and Residual-Stress Distributions in Optical Fibers

2011 ◽  
Author(s):  
Michael R. Hutsel ◽  
Thomas K. Gaylord
Keyword(s):  
Residual Stress ◽  
Refractive Index ◽  
Optical Fibers ◽  
Stress Distributions

Joint Residual Stress/Refractive Index Characterization of Large-Mode-Area Erbium-Doped Fibers

2013 ◽  
Vol 31 (14) ◽  
pp. 2426-2433 ◽  
Author(s):  
Ting Feng ◽  
M. H. Jenkins ◽  
Fengping Yan ◽  
T. K. Gaylord
Keyword(s):  
Residual Stress ◽  
Refractive Index ◽  
Large Mode Area ◽  
Erbium Doped ◽  
Doped Fibers ◽  
Mode Area

Consistent Treatment of Weld Residual Stresses in Fracture Assessment

2002 ◽  
Author(s):  
P. Dong ◽  
J. K. Hong
Keyword(s):  
Residual Stress ◽  
Residual Stresses ◽  
Crack Size ◽  
Stress Distributions ◽  
Stress Effects ◽  
Large Size ◽  
Fracture Assessment ◽  
Girth Welds ◽  
Consistent Treatment

Over the last decade, as more in-depth understanding of weld residual stresses is being achieved, particularly of their characteristic distributions in pressure vessel and piping components, the residual stress effects on stress intensities at welds are becoming better understood. In this paper, some of the important residual stress characteristics are first identified in the form of either “bending” dominated or “self-equilibrating” dominated types for girth welds. The applicability in other joint configurations in welded structures is then discussed, with a collection of validated residual stress distributions. The characterization of both “bending” and “self-equilibrating” types in residual stress distributions provides a consistent framework for stress intensity factor considerations in either fracture and fatigue assessment. The contribution of weld residual stresses to stress intensities at welds are shown to be in the form of K solutions under displacement controlled conditions. The “bending” type residual stresses provide a longer range of influence than “self-equilibrating” type in K solutions. The contribution of “self-equilibrating” type residual stresses to stress intensities is shown to be dominant when crack size is small, while the contribution of the “bending” type dominant for crack size up to a much large size with respect to wall thickness.

scholarly journals Characterization of Chromatic Dispersion and Refractive Index of Polymer Optical Fibers

Polymers ◽  
2017 ◽  
Vol 9 (12) ◽  
pp. 730 ◽  
Author(s):  
Igor Ayesta ◽  
Joseba Zubia ◽  
Jon Arrue ◽  
María Illarramendi ◽  
Mikel Azkune
Keyword(s):  
Refractive Index ◽  
Optical Fibers ◽  
Chromatic Dispersion ◽  
Polymer Optical Fibers

Weld Residual Stresses and Their Treatment in Fracture and Fatigue Assessment

2004 ◽  
Author(s):  
P. Dong
Keyword(s):  
Residual Stress ◽  
Residual Stresses ◽  
Crack Size ◽  
Stress Distributions ◽  
Fatigue Assessment ◽  
Stress Effects ◽  
Large Size ◽  
Girth Welds ◽  
Range Of Influence

Over the last decade, as more in-depth understanding of weld residual stresses is being achieved, particularly of their characteristic distributions in pressure vessel and piping components, the residual stress effects on stress intensities at welds are becoming better understood. In this paper, some of the important residual stress characteristics are first identified in the form of either “bending” dominated or “self-equilibrating” dominated types for girth welds. The applicability in other joint configurations in welded structures is then discussed, with a collection of validated residual stress distributions. The characterization of both “bending” and “self-equilibrating” types in residual stress distributions provides a consistent framework for stress intensity factor considerations in either fracture and fatigue assessment. The contribution of weld residual stresses to stress intensities at welds are shown to be in the form of K solutions under displacement controlled conditions. The “bending” type residual stresses provide a longer range of influence than “self-equilibrating” type in K solutions. The contribution of “self-equilibrating” type residual stresses to stress intensities is shown to be dominant when crack size is small, while the contribution of the “bending” type dominant for crack size up to a much large size with respect to wall thickness.

Sign in / Sign up

Export Citation Format

Share Document