Finite element analysis-based study of fiber Bragg grating sensor for cracks detection in reinforced concrete

2018 ◽  
Vol 57 (02) ◽  
pp. 1 ◽  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Fiber Bragg Grating ◽  
Fiber Bragg Grating Sensor ◽  
Bragg Grating ◽  
Element Analysis ◽  
Bragg Grating Sensor

Finite Element Analysis on Stress and Strain of Protected Fiber Bragg Grating

2010 ◽  
Vol 148-149 ◽  
pp. 1639-1642
Author(s):  
Jian Feng Xie
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Theoretical Analysis ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Stress And Strain ◽  
Analysis Software ◽  
Element Analysis ◽  
Varied Temperature

The stresses and strains on the protected FBG and protected layer under varied temperature were analyzed in theory. In order to verify the theoretical analysis of stress and strain,a finite element analysis software(ANSYS) was used to simulate the stresses and strains on the protected FBG and protected layer. Both simulation and theoretical analysis are show that the strain and stress on protected layer in r direction decreases with the increasing of radius(r), while the strain and stress in direction increases with the increasing of radius(r) . The results of theoretical analysis matches the ones form simulations well.

Finite Element Analysis on Stress and Strain of Embedded Fiber Bragg Grating

2010 ◽  
Vol 148-149 ◽  
pp. 1634-1638
Author(s):  
Jian Feng Xie
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Theoretical Analysis ◽  
Fiber Bragg Grating ◽  
Cement Mortar ◽  
Bragg Grating ◽  
Stress And Strain ◽  
Analysis Software ◽  
Element Analysis ◽  
Varied Temperature

After FBG was protected and embedded into cement mortar, the stresses and strains on the FBG ,protected layer and cement mortar under varied temperature were analyzed in theory. In order to verify the theoretical analysis of stress and strain,a finite element analysis software(ANSYS)was used to simulate the stresses and strains on the FBG ,protected layer and cement mortar. The results of theoretical analysis matches the ones form simulations well.

The change of fiber Bragg grating in uniform strain zones and finite element analysis

2015 ◽  
Vol 41 (3) ◽  
pp. 221-224 ◽  
Author(s):  
王雷 WANG Lei ◽  
刘爱莲 LIU Ailian ◽  
李英娜 LI Yingna ◽  
赵振刚 ZHAO Zhengang ◽  
谢涛 XIE Tao ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Fiber Bragg Grating ◽  
Uniform Strain ◽  
Bragg Grating ◽  
Element Analysis

Finite Element Analysis on Stress and Strain of Nickel Electroless Plated Fiber Bragg Grating

2011 ◽  
Vol 383-390 ◽  
pp. 3893-3897
Author(s):  
Jian Feng Xie
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Theoretical Analysis ◽  
Fiber Bragg Grating ◽  
Bragg Grating ◽  
Stress And Strain ◽  
Analysis Software ◽  
Element Analysis ◽  
Varied Temperature

After FBG was nickel electroless plated, the stresses and strains on the FBG and nickel eclectroless plated layer under varied temperature were analyzed in theory. In order to verify the theoretical analysis of stress and strain,a finite element analysis software(ANSYS) was used to simulate the stresses and strains on the FBG and nickel ececltroless plated layer. The results of theoretical analysis matches the ones form simulations well.

Modeling of Fiber Bragg Grating Sensor Response Due to Combined Effects

Aerospace ◽  
2004 ◽  
Author(s):  
Mohanraj Prabhugoud ◽  
Kara Peters
Keyword(s):  
Finite Element ◽  
Fiber Bragg Grating ◽  
Sensor Response ◽  
Fiber Bragg Grating Sensor ◽  
Finite Element Formulation ◽  
Complete Analysis ◽  
Bragg Grating ◽  
Element Formulation ◽  
Material System ◽  
Bragg Grating Sensor

This article presents a finite element formulation for the calculation of the spectral response of a fiber Bragg grating sensor embedded in a host material system. The formulation is based on a 3D element for which the propagation constant is calculated from the optical and geometric properties in the plane perpendicular to light propagation, after which the optical transfer matrix is calculated. The effects of axial strain, transverse strain, fiber curvature and shear loading are implemented into the formulation. This novel approach permits the prediction of the sensor response when the sensor is embedded in a complicated material system for which analytical or approximative solutions do not accurately predict the strain state in the sensor. A numerical example of a relatively simple sensor geometry is presented to verify the formulation. The integration of the proposed sensor finite element formulation into a classical structural mechanics finite element program to perform the complete analysis is also discussed.

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