Topology-Driven Shielding Performance of Additively Manufactured Gyroid and Diamond Lattice Structures
IEEE Access, cilt.14, ss.107144-107160, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 14
- Basım Tarihi: 2026
- Doi Numarası: 10.1109/access.2026.3712761
- Dergi Adı: IEEE Access
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC, Directory of Open Access Journals
- Sayfa Sayıları: ss.107144-107160
- Anahtar Kelimeler: Additive manufacturing, electromagnetic shielding, lattice structures, shielding effectiveness, unit-cell topology
- Gazi Üniversitesi Adresli: Evet
Özet
Additively manufactured (AM) lattice structures offer lightweight and customizable solutions for electromagnetic (EM) shielding applications. However, the relationship between the unit-cell topology of lattice structures and shielding effectiveness (SE) remains inadequately characterized over a wide frequency range. To reveal the topology-dependent shielding behavior of AM lattices, this study investigates parametrically modeled Gyroid and Diamond unit-cell topologies through combined numerical and experimental analyses over the 1-18 GHz frequency range. The results demonstrate that SE primarily depends on the unit-cell topology and correlates more strongly with the unit-cell surface area than with the relative density. The highest shielding performance was obtained from a low-relative-density and high-surface-area lattice configuration (72.94% weight reduction), which achieved a maximum SE value of 91 dB in the low-frequency band (1-6 GHz), based on numerical simulation results. This value exceeds the experimental dynamic range of the measurement system (~75 dB) and therefore could not be directly experimentally validated. Increasing the lattice surface area by varying in the unit-cell type, cell size, cell thickness, and overall lattice thickness leads to a direct improvement in the SE. The topology-driven unit-cell optimization framework presented in this study provides practical design guidelines for the development of lightweight and optimized EM shielding solutions in advanced engineering systems and can be implemented for other lattice topologies beyond the Gyroid and Diamond unit-cell configurations.