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Structural Engineering and Mechanics Volume 88, Number 3, November10 2023 , pages 201-208 DOI: https://doi.org/10.12989/sem.2023.88.3.201 |
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Experimental and numerical study of effect of the fibers orientation of the different types of composite plates notched of U-shape repaired by composite patch |
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Berrahou Mohamed, Amari Khaoula, Belkaddour Leila and Serier Mohamed
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| Abstract | ||
| In this work, the effect of the correction fibers direction on the efficiency of repairing damaged composite plates was highlighted. The composite plates studied in this work consist of eight layers of graphite/epoxy, while the patch used in this repair consists of four layers of the same type. The results obtained in this work, whether with regard to the experimental or analytical side, showed that the fibers orientation affects the repair efficiency, so the closer the angle of fibers inclination is to the tensile strength direction, the performance of the composite material is ideal. Hence, we conclude that the composite materials with longitudinal fibers (Parallel to tensile strength) is the most powerful and efficient material in performance. | ||
| Key Words | ||
| composite; laminate; stacking sequence; stress intensity factor (SIF); the damaged area ratio (DR); ultimate strength | ||
| Address | ||
| Berrahou Mohamed: University of Relizane, GIDD Laboratory, Relizane 48000, Algeria; University of DJILLALI LIABES, LMPM Laboratory, Sidi Bel Abbes 22000, Algeria Amari Khaoula: University of USTO, LAPS Laboratory, Oran 31000, Algeria Belkaddour Leila, Serier Mohamed: University of Relizane, GIDD Laboratory, Relizane 48000, Algeria | ||