Quasi-static and dynamic compression behavior of stacked pyramidal lattice structures with I-beam struts.

ABSTRACT: This study investigates the quasi-static and dynamic compression performance of a newly designed stacked pyramidal lattice (SPL) structure composed of struts that resemble I-beams. These novel lattice structures are 3D-printed considering three different stacking sequences, and their stiffness, strength, and energy absorption properties are experimentally assessed through low-velocity impact (1.54 m/s) and quasi-static compression tests. Additionally, dynamic finite element (FE) simulations are carried out to delve deeper into the collapse mechanisms and failure processes. The findings indicate that the SPLs with I-beam struts outperform conventional SPLs with square struts of same mass showcasing superior rigidity, durability, and energy absorption. Specifically, we report enhancements in

SUBMITTER: Uddin MA 

PROVIDER: S-EPMC11754475 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature