Laser powder bed fusion of 3D metamaterials for energy absorption

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dc.contributor.author Wits, W.W.
dc.contributor.author Vos, C.J. de
dc.contributor.author Montero Sistiaga, M.L.
dc.contributor.author Smit, M.J. de
dc.date.accessioned 2025-09-23T12:32:18Z
dc.date.available 2025-09-23T12:32:18Z
dc.date.issued 2025
dc.description.abstract Metamaterials with unique energy absorption properties are fabricated by additive manufacturing. Manufacturing limitations, imposed by Laser Powder Bed Fusion (LPBF), hamper the production of in particular 3D metamaterial structures, due to unsupported overhanging struts that are part of the unit cell design. This study analyses two types of 3D metamaterials, the auxetic re-entrant and octet truss. Optimal process parameters are determined experimentally for stainless steel 316L and unit cell design parameters are related to the overall performance of the metamaterial lattices. Drop-weight impact testing experiments are conducted on LPBF-fabricated metamaterial samples. Unique properties for energy absorption, directly related to the metamaterial’s unit cell design, are demonstrated.
dc.identifier.citation Wessel W. Wits, Camill de Vos, Maria Montero-Sistiaga, Marc de Smit, Laser powder bed fusion of 3D metamaterials for energy absorption, Procedia CIRP, Volume 137, 2025, Pages 374-379, ISSN 2212-8271, https://doi.org/10.1016/j.procir.2025.02.278.
dc.identifier.uri https://hdl.handle.net/10921/1787
dc.language.iso en
dc.publisher Elsevier
dc.rights.holder © 2025 The Authors. Published by Elsevier B.V
dc.rights.license CC BY-NC-ND license 4.0
dc.title Laser powder bed fusion of 3D metamaterials for energy absorption
dc.type Article
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