DocumentCode
2313507
Title
Notice of Retraction
Damage identification by flexibility change for beam structures
Author
Qiuwei Yang ; Chaofeng Liang
Author_Institution
Dept. of Civil Eng., Shaoxing Univ., Shaoxing, China
Volume
8
fYear
2010
fDate
10-12 Aug. 2010
Firstpage
3902
Lastpage
3904
Abstract
Notice of Retraction
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Using the flexibility change, a coupled method is proposed in this paper to detect damages in beam structures. The present algorithm makes use of an original finite element model and a subset of measured eigenvalues and eigenvectors. The proposed method identifies structural damages in two steps. Using the change of structural flexibility, a damage localization criterion is defined firstly to determine the damaged degree of freedom. Then the damaged elements can be ascertained according to the relation between the element and the degree of freedom. With the suspected damaged elements determined, the new flexibility perturbation method is employed to obtain damage extents in the second stage. A numerical example of a simply supported beam is used to demonstrate the efficiency of the method. The illustrative example show the good efficiency and stability of the proposed method on the identification of damages in beam structures.
After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.
We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.
The presenting author of this paper has the option to appeal this decision by contacting TPII@ieee.org.
Using the flexibility change, a coupled method is proposed in this paper to detect damages in beam structures. The present algorithm makes use of an original finite element model and a subset of measured eigenvalues and eigenvectors. The proposed method identifies structural damages in two steps. Using the change of structural flexibility, a damage localization criterion is defined firstly to determine the damaged degree of freedom. Then the damaged elements can be ascertained according to the relation between the element and the degree of freedom. With the suspected damaged elements determined, the new flexibility perturbation method is employed to obtain damage extents in the second stage. A numerical example of a simply supported beam is used to demonstrate the efficiency of the method. The illustrative example show the good efficiency and stability of the proposed method on the identification of damages in beam structures.
Keywords
beams (structures); eigenvalues and eigenfunctions; finite element analysis; beam structures; coupled method; damage identification; damage localization criterion; eigenvalues; eigenvectors; finite element model; flexibility perturbation method; structural damages; structural flexibility change; supported beam; Eigenvalues and eigenfunctions; Equations; Finite element methods; Mathematical model; Perturbation methods; Shape; Vibrations; damage identification; damage localization criterion; flexibility perturbation;
fLanguage
English
Publisher
ieee
Conference_Titel
Natural Computation (ICNC), 2010 Sixth International Conference on
Conference_Location
Yantai
Print_ISBN
978-1-4244-5958-2
Type
conf
DOI
10.1109/ICNC.2010.5584747
Filename
5584747
Link To Document