Structural Damage Detection Using Modal Flexibility Method in Honeycomb Composite Sandwich Beam

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Sattar MOHAMMADI ESFARJANI

Abstract

In this study, the modal flexibility method, which is a vibration-based damage detection technique, was tested in order evaluate the performance of the modal flexibility, using the displacement of nodes to detection damage. The method was tested on a honeycomb composite beam structure. By using this technique, damage was identified from the change in displacement responses data, obtained from the free vibration analysis method. This is the first study of evaluation of the modal flexibility method using the displacement of nodes. The location of the damage was determined by the flexibility diagrams. The finite element (FE) analysis was conducted using the commercial FE package ABAQUS. MATLAB was employed for numerical analysis. The purpose of the paper is a present application of the displacement responses for structural damage detection using the modal flexibility method. The results showed that the modal flexibility method was able to detect damage through the displacement of nodes. Also, this study highlighted the importance of applying simulation methods to develop VBDD techniques, especially in complex structures.

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How to Cite
[1]
MOHAMMADI ESFARJANI, S. 2020. Structural Damage Detection Using Modal Flexibility Method in Honeycomb Composite Sandwich Beam. Romanian Journal of Acoustics and Vibration. 17, 1 (Nov. 2020), 51-56.
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