PSI - Issue 68

Available online at www.sciencedirect.com Structural Integrity Procedia 00 (2025) 000–000 Available online at www.sciencedirect.com ScienceDirect

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Procedia Structural Integrity 68 (2025) 372–378

European Conference on Fracture 2024 Production of aluminum cellular solids, mechanical characterization through compression tests and correlation with image analysis A. Ceci a, *, G. Costanza a , C. Iandiorio b , E. Marotta b , P. Salvini b , M.E. Tata a a Industrial Engineering Department, University of Rome Tor Vergata, Via del Politecnico 1, 00133- Rome - Italy b Enterprise Engineering Department, University of Rome Tor Vergata, Via del Politecnico 1, 00133- Rome - Italy Abstract This study explores the production and successive mechanical characterization of metallic lattice structures. Mechanical characterization was carried out through compression tests. Rectangular AA6082 cross-section specimens, manufactured utilizing a unit cell design featuring two different cell fill factors, were produced using the Lost PLA method. The process entailed creating a PLA model using 3D printing, which was subsequently transformed into structures made from AA6082 aluminum alloy through casting techniques. Static compression tests were conducted on manufactured samples, on which a numerical (FEA) comparison modelling was performed. The mechanical behavior of the lattice structures was also analyzed using two image analysis methods: Digital Image Correlation and Discrete Fourier Transform. © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ECF24 organizers Keywords: Metal Cubic Lattice Structures; Triply periodic minimal surfaces (TPMS); Lost-PLA Casting; Mechanical strength of Lattice Structures; Finite Element Analysis; Digital Image Correlation; Discrete Fourier Transform © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ECF24 organizers

* Corresponding author. Tel.: +39 06 72597185 E-mail address: alessandra.ceci@uniroma2.it

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ECF24 organizers

2452-3216 © 2025 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of ECF24 organizers 10.1016/j.prostr.2025.06.068