Since 1963
ARTICLE
Response of sandwich structures with novel TPMS cores under cyclic uniaxial compression
1
Faculty of Aircraft and Military Vehicles, Military Technical Academy "Ferdinand I”, Bucharest, Romania
2
Department of Strength of Materials, National University for Science and Technology POLITEHNICA Bucharest, Bucharest, Romania
3
Institute of Solid Mechanics of the Romanian Academy, Bucharest, Romania
Submission date: 2024-11-17
Final revision date: 2025-01-25
Acceptance date: 2025-03-06
Online publication date: 2025-06-28
Corresponding author
Alexandru Vasile
Faculty of Aircraft and Military Vehicles, Military Technical Academy „Ferdinand I”, Bvd. George Cosbuc No.39-49, Sector 5, 050141, Bucharest, Romania
Faculty of Aircraft and Military Vehicles, Military Technical Academy „Ferdinand I”, Bvd. George Cosbuc No.39-49, Sector 5, 050141, Bucharest, Romania
KEYWORDS
TOPICS
ABSTRACT
This paper focuses on the compressive behavior of nine triply periodic minimal surface (TPMS) structures and one stochastic geometry, designed through an implicit modeling approach and fabricated using a stereolithography (SLA) technique. The compressive response is analyzed, with two topologies outperforming the well-known gyroid, in terms of rigidity and yield strength. Low cyclic testing at two strain levels highlights the good repeatability and stability of the proposed topologies, while comparing the specimens from an energy absorption performance and residual deformation perspective. The stochastic geometry exhibited the worst recovery rates, even though it had the
second-best energy absorption capabilities for the single compression testing.
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| eISSN: | 2543-6309 |
| ISSN: | 1429-2955 |
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