Saving Weight with Metallic Lattice Structures: Design Challenges with a Real-World Example

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dc.creatorKantareddy, S.N.R.
dc.creatorRoh, B.M.
dc.creatorSimpson, T.W.
dc.creatorJoshi, S.
dc.creatorDickman, C.
dc.creatorLehtihet, E.A.
dc.date.accessioned2021-11-01T21:23:09Z
dc.date.available2021-11-01T21:23:09Z
dc.date.issued2016
dc.description.abstractLattice structures are structurally efficient yet complex designs that enable high stiffness and reduce weight. While lattice structures are traditionally difficult to manufacture in metal with conventional fabrication processes, AM is a viable solution to manufacture such complex geometries to achieve lightweight designs. However, there is relatively little information available in the literature about designing large-scale lattice structures, particularly concerning computer-aided design tools, structural analysis, and post-processing for functional metallic components. In this study, we investigate and discuss these aspects in the context of a real-world problem for an oil and gas application. The lattice structure is designed and fabricated with IN 718 powder using an EOS M280 laser-based powder bed fusion system. A weight reduction of 42.4% is achieved while obtaining the desired mechanical performance. Results and challenges, particularly with the design workflow, are discussed along with future research directions.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/89758
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2016 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectlarge-scale lattice structuresen_US
dc.subjectmetallicen_US
dc.subjectmetallic lattice structuresen_US
dc.subjectlattice structuresen_US
dc.subjectreal-world exampleen_US
dc.subjectoilen_US
dc.subjectgasen_US
dc.subjectadditive manufacturingen_US
dc.titleSaving Weight with Metallic Lattice Structures: Design Challenges with a Real-World Exampleen_US
dc.typeConference paperen_US

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2016 International Solid Freeform Fabrication Symposium