Investigation of the Specific Energy Absorption of Triply Periodic Minimal Surfaces Subjected to Impact Loading

Triply periodic minimal surfaces (TPMS) have attracted tremendous research interest due to their lightweight and superior mechanical properties. In this study, two TPMS sheet-based structures (FRD Neovius) are designed, fabricated, tested under dynamic quasistatic loading conditions. Selective laser melting (SLM) is employed facilitate the fabrication of such complex out stainless steel (SS316L). Scanning electron microscopy (SEM) utilized assess quality printed structures. The compressive behaviour investigated through performing a direct impact compression test via Direct Impact Hopkinson Bar (DIHB) at strain rate 2000 s -1 . Quasi-static tests also performed 0.005 specific energy absorption (SEA) compared both conditions investigate performance loading. Results show that exhibit higher SEA values high deformation rates. fact, Neovius outperform FRD in terms as it exhibits value 22.11 J/g 24.8 quasi-static conditions, respectively.