<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Damage detection and identification is one of the most important tasks of proper operation of technical objects and structures. It is, therefore, essential to develop efficient and sensitive methods of early damage detection. Delamination is the type of damage occurring in laminated composites that is one of the most dangerous and most difficult to detect. In this paper, the computational study was performed on the numerical data of the modal shapes of laminated composite beams with simulated delaminations in order to detect them using a fractal dimension-based approach. The obtained results allowed for improvement of detection accuracy as compared to previously applied wavelet-based approach. An additional benefit was decreasing the computational time. Basing on the obtained results it is reasonable to consider the presented approach as a promising alternative to currently applied signal processing methods used for supporting non-destructive testing of structures.</p></abstract>

Damage detection and identification is one of the most important tasks of proper operation of technical objects and structures. It is, therefore, essential to develop efficient and sensitive methods of early damage detection. Delamination is the type of damage occurring in laminated composites that is one of the most dangerous and most difficult to detect. In this paper, the computational study was performed on the numerical data of the modal shapes of laminated composite beams with simulated delaminations in order to detect them using a fractal dimension-based approach. The obtained results allowed for improvement of detection accuracy as compared to previously applied wavelet-based approach. An additional benefit was decreasing the computational time. Basing on the obtained results it is reasonable to consider the presented approach as a promising alternative to currently applied signal processing methods used for supporting non-destructive testing of structures.

Identification of Delamination in Composite Beams using the Fractal Dimension-Based Damage Identification Algorithm

Institute of Fundamentals of Machinery Design

Fatigue of Aircraft Structures

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Damage detection and identification is one of the most important tasks of proper operation of technical objects and structures. It is, therefore, essential to...

Identification of Delamination in Composite Beams using the Fractal Dimension-Based Damage Identification Algorithm

Publié en ligne: 09 août 2018

Pages: 5 - 16

DOI: https://doi.org/10.1515/fas-2017-0001

Mots clés
structural damage identification, fractal dimension, non-destructive testing, composite structures, delamination

© 2017 Andrzej Katunin et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Identification of Delamination in Composite Beams using the Fractal Dimension-Based Damage Identification Algorithm

Publié en ligne: 09 août 2018

Pages: 5 - 16

DOI: https://doi.org/10.1515/fas-2017-0001

Mots clésstructural damage identification, fractal dimension, non-destructive testing, composite structures, delamination

© 2017 Andrzej Katunin et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Mots clés
structural damage identification, fractal dimension, non-destructive testing, composite structures, delamination