The Experimental Research of Delamination Damage Location Based on FBG Sensors Network in Solid Rocket Motor Shell

Xin Long Chang; Xiang Yong He; Bin Jian; Zheng Liang Li

doi:10.4028/www.scientific.net/KEM.413-414.47

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Modal Approach for Forced Vibration of Beams with a Breathing Crack
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The Experimental Research of Delamination Damage Location Based on FBG Sensors Network in Solid Rocket Motor Shell
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Sensor Triangulation for Damage Localisation in Composite Plates
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Identification of Small Crack in Beam Structures Using Anti-Resonant Frequency and Wavelet Analysis
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Removing the Ambiguity in Lamb Wave-Based Damage Localization
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HomeKey Engineering MaterialsKey Engineering Materials Vols. 413-414The Experimental Research of Delamination Damage...

The Experimental Research of Delamination Damage Location Based on FBG Sensors Network in Solid Rocket Motor Shell

Abstract:

The fiber reinforced composite materials were widely used for aerospace aircrafts and missile weapons, and the delamination was a major problem which reduced the structural integrity and reliability of the solid rocket motor (SRM) composite shell seriously. In order to locate the delamination damage, the fiber Bragg grating (FBG) strain sensors network was embedded in SRM shell, and a multi-step approach of delamination damage location based on strain energy was performed: the strain field was measured in a scatter grid by the FBG strain sensors network in hydraulic testing; then the continuous displacement and strain field was reconstructed with relative sensors data using a moving least square (MLS) mesh-free fitting method; the strain energy of each subregions was calculated from the reconstructed data; finally the damaged subregions was identified successfully by singularity value of strain energy. The results of simulation and experiment indicated that the damage identification and location only required the measure of strain field of the SRM shell, and the presented approach achieved higher accuracy.

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Periodical:

Key Engineering Materials (Volumes 413-414)

Pages:

47-54

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.413-414.47

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Online since:

June 2009

Authors:

Xin Long Chang, Xiang Yong He, Bin Jian, Zheng Liang Li

Keywords:

Damage Location, Fibre Bragg Grating Sensor, Filament Wound Shell, Solid Rocket Motor (SRM)

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References

[1] Shen Guanlin, Hu Gengkai: Mechanics of composite Materials (Tinghua university publishing company, 2006).

Google Scholar

[2] Cui Zhaoxia: A Study on the Stress and Damage of Fiber Winding Composite, Doctor degree thesis, Harbin: Harbin Engineering University, (2003).

Google Scholar

[3] R. de Oliveira, C.A. Ramos, A.T. Marques: Computers and Structure Vol. 86 (2008), p.340.

Google Scholar

[4] F.C. Choi, J. Li, B. Samali, K. Crews: Engineering Structures Vol. 30 (2008), p.1124.

Google Scholar

[5] Narayanan Ramanujam, Toshio Nakamura: Journal of Composite Materials Vol. 41 (2007), p.2471.

Google Scholar

[6] G.R. Liu, Y.T. Gu: An introduction to meshfree methods and their programming (Shangdong University publishing company, 2007).

Google Scholar

[7] Xinlong Chang, Xiangyong He, etc: Experimental Research on Embedded Fiber Bragg Grating Sensors Network for Solid Rocket Motors Health Monitor, Edited by Zheng hong, First International Conference on Intelligent Networks and Intelligent Systems, 2008, p.170.

DOI: 10.1109/icinis.2008.80

Google Scholar