Effect of stacking sequence of fibre metal laminates with carbon fibre reinforced composites on mechanical attributes : numerical simulations and experimental validation

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Hynes, N. Rajesh Jesudoss and Vignesh, N.J. and Jappes, J.T. Winowlin and Velu, P. Shenbaga and Barile, Claudia and Ali, Muhammad Asad and Farooq, Muhammad Umar and Pruncu, Catalin I. (2022) Effect of stacking sequence of fibre metal laminates with carbon fibre reinforced composites on mechanical attributes : numerical simulations and experimental validation. Composites Science and Technology, 221. 109303. ISSN 0266-3538 (https://doi.org/10.1016/j.compscitech.2022.109303)

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Abstract

Fibre Metal Laminates are structures used primarily in aerospace applications because of their principal advantages such as high strength, lower density, and impact resistance. In the present work, a systematic assessment has been made to evaluate two different stacking sequences of FMLs (Type – I (AA 6061/Carbon Fibre/AA 6061/Carbon Fibre/AA 6061), and Type – II (Carbon Fibre/AA 6061/Carbon Fibre/AA 6061/Carbon Fibre)) against a pure carbon composite (Type - III) as baseline for improvement. The investigations are made for enhanced impact resistance, improved tensile strength, increased flexural capability, microstructural evolution, and surface composition. Mechanical-based testing resulted that Type – I shows significant performance followed by Type – II. The maximum values of tensile strength, impact test, and ultimate load bearing capacity of during flexural test were around 192.92 MPa, 9.3 J, and 155 N, respectively. Correlations of experimental results were drawn against numerical simulation to validate the tensile and flexural results. Microstructural evolution indicated good bonding capability of Type – I FML with the carbon fibre. EDX analysis was carried out analyse surface chemistry. Selected Fibre Metal Laminate sequence can help in improving aeronautical industry's structural applications because of good ductile properties together with fatigue strength and impact resistance.

ORCID iDs

Hynes, N. Rajesh Jesudoss, Vignesh, N.J., Jappes, J.T. Winowlin, Velu, P. Shenbaga, Barile, Claudia, Ali, Muhammad Asad, Farooq, Muhammad Umar and Pruncu, Catalin I. ORCID logoORCID: https://orcid.org/0000-0002-4926-2189;
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