Beam Deletion in Square Honeycombs for Improved Energy Absorption Under Quasi-Static In-Plane Compression

dc.creatorRamirez-Chavez, Irving E.
dc.creatorLee, Christine
dc.creatorBhate, Dhruv
dc.date.accessioned2023-02-24T14:45:29Z
dc.date.available2023-02-24T14:45:29Z
dc.date.issued2022
dc.description.abstractWhen selecting cellular materials for energy absorption applications, there have traditionally been two choices: a periodic structure such as a honeycomb, or a stochastic one, as seen in foams. Both choices involve a global definition governing the allocation of the members of the structure, be they beams or surfaces. With Additive Manufacturing, the exploration of more complex structures enables the creation of aperiodicity through the local modification of periodic structures. This paper explores one application of this approach by deleting beams in square honeycombs, with the aim of avoiding localization of failure that generates significant undulations in the stress plateau under in-plane quasi-static compression. These perturbed structures show improved energy absorption behavior by generating higher Specific Energy Absorption for a given transmitted stress and relative density than their periodic counterparts. This work thus argues for further exploration of localized aperiodicity as an approach to finely tune energy absorption performance.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/117524
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/44404
dc.language.isoengen_US
dc.relation.ispartof2022 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectAdditive Manufacturingen_US
dc.subjectbeam deletionen_US
dc.subjectcellular materialsen_US
dc.subjectdensification strainen_US
dc.subjectmaximum transmitted stressen_US
dc.subjectperturbationen_US
dc.subjectenergy absorptionen_US
dc.titleBeam Deletion in Square Honeycombs for Improved Energy Absorption Under Quasi-Static In-Plane Compressionen_US
dc.typeConference paperen_US

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