Mechanical Behavior of Additively-Manufactured Gyroid Lattice Structure under Different Heat Treatments

dc.creatorSereshk, Mohammad Reza Vaziri
dc.creatorShrestha, Rakish
dc.creatorLessel, Brandon
dc.creatorPhan, Nam
dc.creatorShamsaei, Nima
dc.date.accessioned2021-11-30T21:42:03Z
dc.date.available2021-11-30T21:42:03Z
dc.date.issued2019
dc.description.abstractGyroid lattice structures, known for high stiffness and specific strength, are gaining attention for their energy absorption ability. However, energy absorption and strength of the gyroids are two desired properties, which vary contradictory. This study investigates manipulating properties on lattices using post-processing operation instead of modifying dimensions with consequent changes in weight and production cost. The challenge is that a particular post-processing heat treatment may improve one property, while it may be detrimental to other ones. The compressive properties of 17-4 PH stainless steel gyroid lattice structures fabricated using laser beam powder bed fusion (LB-PBF) method is investigated. Compressive properties such as load bearing capacity, crashing strength, and energy absorption are determined and the trends in their variation are discussed. Based on the experimental results, heat treating lattices with CA H900 procedure improves energy absorption and strength considerably, while increases crashing force, as well.en_US
dc.description.departmentMechanical Engineeringen_US
dc.identifier.urihttps://hdl.handle.net/2152/90559
dc.identifier.urihttp://dx.doi.org/10.26153/tsw/17478
dc.language.isoengen_US
dc.publisherUniversity of Texas at Austinen_US
dc.relation.ispartof2019 International Solid Freeform Fabrication Symposiumen_US
dc.rights.restrictionOpenen_US
dc.subjectlattice structuresen_US
dc.subjectgyroidsen_US
dc.subjectheat treatmenten_US
dc.subjectmechanical behavioren_US
dc.subjectpost-processingen_US
dc.subjectlaser beam powder bed fusionen_US
dc.titleMechanical Behavior of Additively-Manufactured Gyroid Lattice Structure under Different Heat Treatmentsen_US
dc.typeConference paperen_US

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