Optimizing additive manufacturing of sandwich structures: Effect of TPMS cores on flexural properties
Gabriele Marabello, Mohamed Chairi, Guido Di Bella
Abstract. This study investigates the flexural performance of sandwich structures with Triply Periodic Minimal Surface (TPMS) cores fabricated using additive manufacturing techniques. The TPMS geometries examined include Gyroid, Schwarz, Diamond, Lidinoid, Split-P, and Neovius, selected for their favorable strength-to-weight ratios, which are critical in lightweight applications such as aerospace, automotive, and civil engineering. To ensure consistent evaluation, 3D-printed samples were produced with a uniform infill percentage, and three-point bending tests were conducted to assess their mechanical behavior under flexural loading. The results demonstrate that the TPMS core geometry significantly influences the structural integrity and overall mechanical performance of the sandwich structures. Specifically, variations in flexural strength and stiffness were observed depending on the TPMS configuration employed.
Keywords
Additive Manufacturing, TPMS, Sandwich Structures, Process Optimization
Published online 5/7/2025, 11 pages
Copyright © 2025 by the author(s)
Published under license by Materials Research Forum LLC., Millersville PA, USA
Citation: Gabriele Marabello, Mohamed Chairi, Guido Di Bella, Optimizing additive manufacturing of sandwich structures: Effect of TPMS cores on flexural properties, Materials Research Proceedings, Vol. 54, pp 124-134, 2025
DOI: https://doi.org/10.21741/9781644903599-14
The article was published as article 14 of the book Material Forming
Content from this work may be used under the terms of the Creative Commons Attribution 3.0 license. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
References
[1] Y. Wakjira, A. Cioni, H.G. Lemu, Current Status of the Application of Additive-Manufactured TPMS Structure in Bone Tissue Engineering. Prog. Addit. Manuf. (2024). https://doi.org/10.1007/s40964-024-00714-w
[2] A. Vasile, D.M. Constantinescu, I.C. Coropețchi, S. Sorohan, D.A. Apostol. Definition, Fabrication, and Compression Testing of Sandwich Structures with Novel TPMS-Based Cores. Mater. 17 (2024) 5150. https://doi.org/10.3390/ma17215150
[3] V. Shevchenko, S. Balabanov, M. Sychov, L. Karimova. Prediction of Cellular Structure Mechanical Properties with the Geometry of Triply Periodic Minimal Surfaces (TPMS). ACS Omega 8 (2023) 26895-26905. https://doi.org/10.1021/acsomega.3c01631.
[4] A. Kausar, I. Ahmad, S.A. Rakha, M.H. Eisa, A. Diallo. State-Of-The-Art of Sandwich Composite Structures: Manufacturing-to-High Performance Applications. J. Compos. Sci. 7 (2023) 102. https://doi.org/10.3390/jcs7030102
[5] G.F. Malta, P.H. dos Santos Alves; M.N.D. Barcelos Jr. Sandwich Structures with TPMS Core and Printed Circuit Board Faces. J. Eng. Exact Sci. 10 (2024) 18973. https://doi.org/10.18540/jcecvl10iss5pp18973
[6] L. He, T. Li, D. Zhong, H. Tao, Y. Peng, S. Chen. Blast Resistance in Sandwich Structures Based on TPMS. Buildings. 13 (2023) 2835. https://doi.org/10.3390/buildings13112835
[7] B.D. de Castro, F. de Castro Magalhães, T.H. Panzera, J.C. Campos Rubio. An Assessment of Fully Integrated Polymer Sandwich Structures Designed by Additive Manufacturing. J. Mater. Eng. Perform. 30 (2021) 5031-5038. https://doi.org/10.1007/s11665-021-05604-8
[8] G. Marabello, M. Chairi, G. Di Bella. Optimising Additive Manufacturing to Produce PLA Sandwich Structures by Varying Cell Type and Infill: Effect on Flexural Properties. J. Compos. Sci. 8 (2024) 360. https://doi.org/10.3390/jcs8090360
[9] R. Sankineni, Y. Ravi Kumar. Evaluation of Energy Absorption Capabilities and Mechanical Properties in FDM Printed PLA TPMS Structures. Proc. Inst. Mech. Eng. C. J. Mech. Eng. Sci. 236 (2022) 3558-3577. https://doi.org/10.1177/09544062211039530.
[10] S.A. Naghavi, M. Tamaddon, A. Marghoub, K. Wang, B.B. Babamiri, K. Hazeli, W. Xu, X. Lu, C. Sun, L. Wang, M. Moazen, L. Wang, D. Li, C. Liu. Mechanical Characterisation and Numerical Modelling of TPMS-Based Gyroid and Diamond Ti6Al4V Scaffolds for Bone Implants: An Integrated Approach for Translational Consideration. Bioeng. 9 (2022) 504. https://doi.org/10.3390/bioengineering9100504.
[11] R. Miralbes, D. Ranz, F.J. Pascual, D. Zousias. Characterization of Additively Manufactured Triply Periodic Minimal Surface Structures under Compressive Loading. Mech. Adv. Mater. Struct. 29 (2022) 1841-1855. https://doi.org/10.1080/15376494.2020.1842948.
[12] S.Z. Khan, S.H. Masood, E. Ibrahim, Z. Ahmad. Compressive Behaviour of Neovius Triply Periodic Minimal Surface Cellular Structure Manufactured by Fused Deposition Modelling. Virtual Phys. Prototyp. 14 (2019) 360-370.
