4.7 Article

Deformation and energy absorption characteristics of additively-manufactured polymeric lattice structures - Effects of cell topology and material anisotropy

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Summary: Lightweight cellular materials and structures are widely used in load-bearing and energy absorption applications due to their favorable mechanical properties. Recent advances in additive manufacturing techniques have allowed for tailored architectural geometries in cellular structures. New hybrid lattice designs combining the advantages of octet and bending-dominated structures show stable post-yield stress plateau without significant sacrifice in stiffness and strength. This study suggests further enhancement of energy absorption performance in lattice structures by appropriately tuning their topological architectures.

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