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Structural Health Monitoring of 2D Plane Structures
Article

Mode Shape-Based Damage Detection Method (MSDI): Experimental Validation

Faculty of Civil Engineering, University of Zagreb, 10000 Zagreb, Croatia
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Author to whom correspondence should be addressed.
Academic Editor: César M. A. Vasques
Appl. Sci. 2021, 11(10), 4589; https://doi.org/10.3390/app11104589
Received: 19 April 2021 / Revised: 12 May 2021 / Accepted: 15 May 2021 / Published: 18 May 2021
(This article belongs to the Special Issue Advanced Structural Health Monitoring: From Theory to Applications)
The main principle of vibration-based damage detection in structures is to interpret the changes in dynamic properties of the structure as indicators of damage. In this study, the mode shape damage index (MSDI) method was used to identify discrete damages in plate-like structures. This damage index is based on the difference between modified modal displacements in the undamaged and damaged state of the structure. In order to assess the advantages and limitations of the proposed algorithm, we performed experimental modal analysis on a reinforced concrete (RC) plate under 10 different damage cases. The MSDI values were calculated through considering single and/or multiple damage locations, different levels of damage, and boundary conditions. The experimental results confirmed that the MSDI method can be used to detect the existence of damage, identify single and/or multiple damage locations, and estimate damage severity in the case of single discrete damage. View Full-Text
Keywords: damage detection; plate-like structure; operational modal analysis; mode shape; modal assurance criterion (MAC) matrix; mode shape damage index (MSDI); discrete damages damage detection; plate-like structure; operational modal analysis; mode shape; modal assurance criterion (MAC) matrix; mode shape damage index (MSDI); discrete damages
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MDPI and ACS Style

Duvnjak, I.; Damjanović, D.; Bartolac, M.; Skender, A. Mode Shape-Based Damage Detection Method (MSDI): Experimental Validation. Appl. Sci. 2021, 11, 4589. https://doi.org/10.3390/app11104589

AMA Style

Duvnjak I, Damjanović D, Bartolac M, Skender A. Mode Shape-Based Damage Detection Method (MSDI): Experimental Validation. Applied Sciences. 2021; 11(10):4589. https://doi.org/10.3390/app11104589

Chicago/Turabian Style

Duvnjak, Ivan, Domagoj Damjanović, Marko Bartolac, and Ana Skender. 2021. "Mode Shape-Based Damage Detection Method (MSDI): Experimental Validation" Applied Sciences 11, no. 10: 4589. https://doi.org/10.3390/app11104589

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