Design, fabrication, and evaluation of functionally graded triply periodic minimal surface structures fabricated by 3D printing

Abstract Cellular structures are a favorite selection for the design of lightweight components and energy absorption applications due to several advantages such as their customizable stiffness strength. In this investigation, functionally graded (FG) triply periodic minimal surfaces, Schoen-IWP (SIWP), Schwarz primitive (SPrim) cellular were fabricated by masked stereolithography (MSLA) technique using ABS-like gray resin. The sample morphology, deformation behavior, mechanical characteristics, uniform studied experimental compression tests. FG exhibited layer-by-layer collapse delaying shear failure. On other hand, samples showed complete diagonal total densification point was 0.52 MJ/m 3 0.58 SIWP, respectively. Additionally, absorbed SPrim structure 0.59 while one 0.27 . investigations that more with high strain during test.