Study on compressive properties of porous fluorite lattice metamaterials
ZHANG Lichen
LI Longhao
WU Dongquan
LI Yupeng
WANG Hejingwen
ZHOU Bochen
WANG Mingkaiqi
LI Xinzhe
Abstract：Plate lattice metamaterials are an emerging class of multifunctional metamaterials characterized by exceptional physical and mechanical properties.Specimens of fluorite structure plate lattice metamaterials with varying cell lengths,wall thicknesses,pore radius,and numbers of cell layers were fabricated using fused deposition modeling 3D printing technology.Quasi-static compression tests were conducted on the fabricated specimens,and their deformation mechanisms were analyzed and compared through digital image correlation and finite element simulations to investigate the effects of different parameters on the mechanical performance and energy absorption capabilities of the fluorite structure plate lattice metamaterials.The study revealed that the fluorite structure without holes exhibits higher modulus of elasticity and yield stress within the elastic region,demonstrating superior deformation resistance.Although energy absorption efficiency increases with cell length,the specific energy absorption decreases.Increasing wall thickness results in higher modulus of elasticity and platform stress but reduces specific energy absorption.Enlarging the pore radius leads to decreases in platform stress and energy absorption,as well as a reduction in specific energy absorption.The specific energy absorption reaches its maximum when the number of cell layers increases to three;however,excessive layering diminishes energy absorption efficiency.
Keywords：Plate lattice metamaterialFluorite structureFused deposition modelingMechanical property
Publication Date：2025-12-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：10( 141-150 )