Investigation on graphene addition on the quasi-static and dynamic responses of carbon fibre-reinforced metal laminates
Wang S. Cao M. Xue H. Araby S. Abbassi F. He Y. Su W. Meng Q.
May 2022Elsevier Ltd
Thin-Walled Structures
2022#174
In this paper, graphene nanoplatelets (GnPs) were used with carbon fibre/epoxy composite to enhance the mechanical performance of fibre metal laminates (FMLs). The designed FMLs are composed of thin aluminium alloy layers alternating with carbon-fibre epoxy/GnP composite plies with a chemical treatment performed on the aluminium laminate to promote adhesion strength with the epoxy composite. Two different configurations of FMLs were investigated (i) composite plies with unidirectional carbon fibres (U-FMLs) and (ii) composite plies with plain carbon woven (W-FMLs). Samples were tested under dynamic loading (Charpy impact) and quasi-static loading (three-point flexure). The experimental results showed that FMLs with 0.3 wt% GnPs logged the best impact performance; the impact strength of W-FMLs and U-FMLs are respectively 18.2% and 25.2% higher than FMLs without GnPs. FMLs with 0.5 wt% GnPs recorded the highest enhancement in flexural strength, fracture strain and flexural modulus recording increments 23.1%, 19.3% and 48% for the W-FMLs, and 60.3%, 34.5% and 61.4% for the U-FMLs, respectively. Also, an in-depth microscopic analysis was conducted to understand the reinforcing mechanism of GnPs into FMLs. Moreover, a numerical model of a three-point flexural test was developed to show the ability of numerical tools to predict material behaviour at optimised optimized costs. Johnson-Cook Johnson–Cook and Hashin damage models were used respectively for aluminium alloy and carbon fibre epoxy/GnP composite to accurately predict their deformation and damage modes.
Charpy impact , Damage analysis , FMLs , Graphene nanoplatelets , Numerical simulation , Three-point flexure
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School of Mechanical Engineering, Northwestern Polytechnical University, Xian, 710072, China
College of Aerospace Engineering, Shenyang Aerospace University, Shenyang, 110136, China
Department of Mechanical and Aerospace Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Nur-Sultan 010000, Kazakhstan
College of Engineering and Technology, American University of the Middle East, Kuwait
Naval University of Engineering, National Key Laboratory of Science and Technology on Vessel Integrated Power System, Wuhan, 430033, China
School of Mechanical Engineering
College of Aerospace Engineering
Department of Mechanical and Aerospace Engineering
College of Engineering and Technology
Naval University of Engineering
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