Stress-strain behaviour of graphene reinforced aluminum nanocomposite under compressive loading using molecular dynamics
| Autor: | Vimal Kumar Pathak, Mithilesh K. Dikshit, Ashish Kumar Srivastava, Ramanpreet Singh |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Materials science Nanocomposite Graphene Composite number Stress–strain curve 02 engineering and technology Strain rate 021001 nanoscience & nanotechnology 01 natural sciences law.invention Molecular dynamics Compressive strength law 0103 physical sciences Composite material 0210 nano-technology Elastic modulus |
| Zdroj: | Materials Today: Proceedings. 44:4521-4525 |
| ISSN: | 2214-7853 |
| DOI: | 10.1016/j.matpr.2020.10.803 |
| Popis: | In the present study, the graphene sheet (GS) - embedded aluminium (Al) composite under compressive strain rate is analyzed using molecular dynamics (MD) simulation. The effects of pin-hole and layering of GSs on compressive strengthening behaviour of the composite material are predicted. MD simulation has been performed with the aid of open-source code LAMMPS by modelling a periodic system of GS-Al nanocomposite unit cells. Adaptive Intermolecular Reactive Empirical Bond Order (AIREBO) and Embedded atom method (EAM) potentials are employed to model the interactions between carbon atoms and the atoms of Al respectively. The simulation results show that the compressive strength of nanocomposite material is substantially larger than that of pure Al material. It is also found that the compressive elastic modulus of GS-Al nanocomposite material deteriorates because of pin-holed GS on the contrary to layered GS reinforced nanocomposites. |
| Databáze: | OpenAIRE |
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