Residual Force Method for damage identification in a laminated composite plate with different boundary conditions
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https://orcid.org/0000-0002-3597-8725
Tawfiq Khatir
Department of Technology, University Centre of Naama - Salhi Ahmed, Naama, Algeria
Samir Khatir
Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Technologiepark Zwijnaarde, Zwijnaarde, Belgium.
Magd Abdel Wahab
Soete Laboratory, Faculty of Engineering and Architecture, Ghent University, Technologiepark Zwijnaarde, Zwijnaarde, Belgium.
https://orcid.org/0000-0002-3610-865X
Brahim Benaissa
Design Engineering Laboratory, Toyota Technological Institute, Nagoya, Japan.
https://orcid.org/0000-0002-9472-9331
Abstract
The strongest point about damage identification based on the dynamic measurements, is the ability perform structural health evaluation globally. Researchers in the last few years payed more attention to damage indicators based on modal analysis using either frequencies, mode shapes, or Frequency Response Functions (FRFs). This paper presents a new application of damage identification in a cross-ply (0°/90°/0°) laminated composite plate based on Force Residual Method (FRM) damage indicator. Considering single and multiple damages with different damage levels. As well as investigating the SSSS and CCCC boundary conditions effect on the estimation accuracy. Moreover, a white Gaussian noise is introduced to test the challenge the technique. The results show that the suggested FRM indicator provides accurate results under different boundary conditions. Favouring the SSSS boundary condition than the CCCC for 3% noise.
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