Evaluation of the energy absorbing capacity of the two combinations of TPMS structure subjected to different compressive strain rates

This study provides an overview of the most recent advancements in the production of two triple periodic minimal (TPMS) structure combinations using acrylonitrile butadiene styrene (ABS-M30i) material, their structural mechanics, and energy absorption properties. The geometrical parameters of the three designs of TPMS foam structures with various densities were studied in accordance with the Gibson Ashby criteria, and the behavior of the structures in terms of energy absorption at strain rates of 1 s⁻¹, 10 s⁻¹, and 100 s⁻¹ was performed. Mechanical assessment results for the three design structures were consistent with the Gibson–Ashby model assumptions, and Gibson–Ashby equations were developed to predict the mechanical performance of three different types of lattice structures generated by FDM. This study provides techniques for predicting the mechanical properties of two combination of TPMS structure such as (i) PrimaryIwp Schwarz Primitive (PSP), (ii) Neovius-SchwarzD (NS), and (iii) Gyroid-Fischerkoch structures made by FDM, as well as a better understanding of the possibilities and limitations of these structures. At three different strain rates, each of the three TPMS design structural crashworthiness features was successfully recognized, analyzed, and documented.