A Multistage Damage Detection Approach Using Graph Theory and Water Strider Algorithm

Structures usually suffer from natural or artificial damages that might result in shortening their service life and even triggering their collapse. Therefore, vibrational damage detection methods, as cost-effective and nondestructive techniques, are widely investigated by researchers. In the present...

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Bibliographic Details
Published in:Iranian journal of science and technology. Transactions of civil engineering 2022-02, Vol.46 (1), p.33-54
Main Authors: Kaveh, Ali, Rahmani, Parmida, Dadras Eslamlou, Armin
Format: Article
Language:English
Subjects:
Algorithms
Civil Engineering
Computer applications
Damage detection
Engineering
Graph theory
Graphical representations
Nondestructive testing
Research Paper
Service life
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Summary:Structures usually suffer from natural or artificial damages that might result in shortening their service life and even triggering their collapse. Therefore, vibrational damage detection methods, as cost-effective and nondestructive techniques, are widely investigated by researchers. In the present paper, the modal-strain energy-based two-stage method is enhanced, and a graph-theoretic hierarchical (GHM) method is proposed, which takes advantage of the modal strain energy-based index (MSEBI) and overcomes its potential drawbacks by identifying all damaged elements. This method assigns orders and allocates the computational resources to elements according to the MSEBI as well as the connections represented by a graph model. The water strider algorithm (WSA) is also utilized as an efficient new optimizer, and its results are compared with those of some other well-known algorithms. Several examples are used to substantiate the results and performance of the new GHM framework, showing that the new method outperforms the general classic method, especially when it is combined with the WSA optimizer.
ISSN:2228-6160
2364-1843
DOI:10.1007/s40996-020-00578-4