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- Loukil, Mohamed Sahbi, 1984-, et al.
(författare)
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EXPERIMENTAL INVESTIGATION ON BEARING BEHAVIOR AND FAILURE MECHANISM OF HYBRID THIN/THICK-PLY COMPOSITE LAMINATES
- 2022
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Ingår i: ECCM 2022 - Proceedings of the 20th European Conference on Composite Materials: Composites Meet Sustainability. - : Composite Construction Laboratory (CCLab), Ecole Polytechnique Federale de Lausanne (EPFL). - 9782970161400 ; , s. 999-1006
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Konferensbidrag (refereegranskat)abstract
- The effect of using thin plies to increase the bearing strength of composite laminates was investigated. Five different composite laminates were manufactured using a single material system with varying proportions of thin plies (100% thick-ply, 50% thin-ply and 100% thin-ply). Bearing tests were performed and the results from the tests are investigated. The results show that performance in terms of bearing strength at onset of damage, and ultimate bearing stress increase proportionally with the increasing amount of thin plies within the stack. Microscopic examination of the failure modes for all laminates was performed at the center of the hole to determine the dominant failure mode. Transition zone was investigated where both thin and thick plies were designed so that the thin plies are used only when more strength is required. © 2022 Loukil et al.
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- Sahbi Loukil, Mohamed, et al.
(författare)
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Experimental and numerical investigation on bearing behavior of hybrid thin/thick-ply composite laminates
- 2024
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Ingår i: Composite structures. - : Elsevier Ltd. - 0263-8223 .- 1879-1085. ; 331
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Tidskriftsartikel (refereegranskat)abstract
- Experimental and numerical studies were carried out to characterize hybrid thin- and thick-ply composite laminates and assess modelling capabilities. Five different composite laminates were manufactured using a single material system with varying proportions of thin plies (0%, 50%, and 100% thin-ply). Bearing tests were performed and the results from the tests were investigated. The results showed that performance, in terms of bearing strength at onset of damage and ultimate bearing stress, increased proportionally with the increasing amount of thin plies within the laminate. Microscopic examination of the failure modes for all laminates was performed at the center of the hole to determine the dominant failure mode. The numerical investigation uses a highly detailed mesoscale model previously validated for crash simulations but never used successfully to bearing damage areas. The results showed a good correlation regarding both the load response and the morphology of damage.
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