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      Characterization of penetrate and interpenetrate tessellated cellular lattice structures for energy absorption

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          Abstract

          Recently, cellular lattice structures are gaining research attention due to their lightweight and high energy absorption. Interpenetrated lattice structure is a combination of two or more regular lattices with the same volume and without any contact at the unit level. The interpenetrated tessellated lattice (I-PTL) structures are better known for load sharing and energy absorption applications. In the current research, regular unit cell lattices such as cubic, beam lattice, body-centered cubic, and octahedron are considered to fabricate penetrated and interpenetrated cellular lattice structures and tested for energy absorption on quasi-static loading. These structures were fabricated using a Vat polymerization three-dimensional printer and tested as per the American Society for Testing and Materials (ASTM) standards, and the results were compared with numerical simulation using ANSYS. The penetrated tessellated lattice structural and I-PTL behavior deliver energy transfer controlled by the surface and solid joint interactions. The enhancement in mechanical properties is observed with the controllable compliance and specific energy absorption of the lattice structure.

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          Foam topology: bending versus stretching dominated architectures

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              Additive manufacturing of multi-material structures

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                Author and article information

                Contributors
                (View ORCID Profile)
                (View ORCID Profile)
                Journal
                Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
                Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
                SAGE Publications
                1464-4207
                2041-3076
                April 2023
                October 11 2022
                April 2023
                : 237
                : 4
                : 906-913
                Affiliations
                [1 ]Multi-Functional Materials and Additive Manufacturing Laboratory, Department of Mechanical Engineering, National Institute of Technology Puducherry, Karaikal, Puducherry, India
                Article
                10.1177/14644207221129709
                954f754c-f744-4ad3-940d-5897de0431bc
                © 2023

                http://journals.sagepub.com/page/policies/text-and-data-mining-license

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