Notice of RetractionAnalysis on fatigue life of cracked beam under forced vibration

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.

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An analytical method was proposed for cracked beam to improve the prediction precision of fatigue life. Many factors such as crack length together with excitation frequency and damping were considered during vibration analysis. Paris equation and piecewise analysis method were employed to consider the coupling relation of vibration and crack propagation in the analysis of fatigue life. Cracked cantilever beam under bending moment whose crack element replaced by linear torsion spring and damping introduced by complex elastic modulus was used as an analytical object. Results indicate that crack length, excitation frequency and damping play important effects on the fatigue life of structural crack growth under forced vibration, especially in the resonance region, and the coupling relationship of vibration and crack propagation has great influence on the fatigue life of cracked structures.