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4 results on '"Slimani, Mohand"'

2. Residual Force Method for damage identification in a laminated composite plate with different boundary conditions

Author

Behtani, Amar, Tiachacht, Samir, Khatir, Tawfiq, Khatir, Samir, Abdel Wahab, Magd, Benaissa, Brahim, and Slimani, Mohand

Subjects
noise, Frequency response, Technology and Engineering, Modal analysis, TA630-695, Residual, No further information, symbols.namesake, Normal mode, Composite plate, RFM, Damage quantification, TJ1-1570, Boundary value problem, Mechanical engineering and machinery, composite laminated plate, STRAIN-ENERGY, INDICATOR, Mathematics, VIBRATION, Structural engineering (General), business.industry, Mechanical Engineering, Structural engineering, Composite laminated plate, Noise, Additive white Gaussian noise, Mechanics of Materials, symbols, noise and Composite laminated plate, business
Abstract

The strongest point about damage identification based on the dynamic measurements, is the ability to 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 degrees/90 degrees/0 degrees) 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 challenges of 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.

Published
2021

4. Residual Force Method for damage identification in a laminated composite plate with different boundary conditions.

Author

Behtani, Amar, Tiachacht, Samir, Khatir, Tawfiq, Khatir, Samir, Wahab, Magd Abdel, Benaissa, Brahim, and Slimani, Mohand

Subjects
COMPOSITE plates, LAMINATED materials, MODE shapes, RANDOM noise theory, IRON & steel plates, MODAL analysis, WHITE noise
Abstract

The strongest point about damage identification based on the dynamic measurements, is the ability to 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 challenges of 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. [ABSTRACT FROM AUTHOR]

Published
2022
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