A new approach for crack detection in plate structures using an integrated extended finite element and enhanced vibrating particles system optimization methods

This study presents a new geometry-based crack detection approach for plate structures based on the integration of a dynamic extended finite element method (XFEM) and a physics-based optimization algorithm called enhanced vibrating particles system (EVPS). The so-called XFEM-EVPS method is applied t...

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Bibliographic Details
Published in:Structures (Oxford) 2021-02, Vol.29, p.638-651
Main Authors: Fathi, Hamed, Hoseini Vaez, S.R., Zhang, Qianyun, Alavi, Amir H.
Format: Article
Language:English
Subjects:
Crack detection
Enhanced vibrating particles system
Extended finite element method
Inverse problem
Plate structures
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Summary:This study presents a new geometry-based crack detection approach for plate structures based on the integration of a dynamic extended finite element method (XFEM) and a physics-based optimization algorithm called enhanced vibrating particles system (EVPS). The so-called XFEM-EVPS method is applied to solve a forward problem. The problem is unraveled by applying traction loading phases and capturing environmental responses in two dimensions in each phase. Then, the EVPS algorithm is deployed to solve the inverse problem. The studied plate structures are analyzed by means of both fine and coarse meshing. Furthermore, each dissolved problem is similarly investigated through applying noise. The results indicate the efficiency of the proposed XFEM-EVPS method in detecting crack location. A comparative study is further conducted to benchmark the performance of the XFEM-EVPS method against a hybrid XFEM and particle swarm optimization approach.
ISSN:2352-0124
2352-0124
DOI:10.1016/j.istruc.2020.11.017