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Steel and Composite Structures Volume 44, Number 5, September10 2022 , pages 685-690 DOI: https://doi.org/10.12989/scs.2022.44.5.671 |
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Equivalent material properties of perforated metamaterials based on relative density concept |
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Mohammad Reza Barati and Hossein Shahverdi
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| Abstract | ||
| In this paper, the equivalent material properties of cellular metamaterials with different types of perforations have been presented using finite element (FE) simulation of tensile test in Abaqus commercial software. To this end, a Representative Volume Element (RVE) has been considered for each type of cellular metamaterial with regular array of circular, square, oval and rectangular perforations. Furthermore, both straight and perpendicular patterns of oval and rectangular perforations have been studied. By applying Periodic Boundary conditions (PBC) on the RVE, the actual behavior of cellular material under uniaxial tension has been simulated. Finally, the effective Young's modulus, Poisson's ratio and mass density of various metamaterials have been presented as functions of relative density of the RVE. | ||
| Key Words | ||
| effective properties; finite element simulation; metamaterial; RVE; tensile test | ||
| Address | ||
| Mohammad Reza Barati and Hossein Shahverdi:Department of Aerospace Engineering, Amirkabir University of Technology (Tehran Polytechnic), Tehran, Iran | ||