Research on the mechanical properties of FCC truss lattice structures
ZHOU Xiangyu
XU Zhutian
PENG Linfa
Abstract：To investigate the influence of structural parameters on the yield strength and deformation behavior of truss lattice structures,face-centered cubic(FCC)porous lattices were fabricated and the mechanical responses were systematically studied.A finite element model was developed to evaluate the yield strength and failure modes of structures with varying geometric parameters.The analysis revealed a correlation between the member slenderness ratio and the transition from progressive collapse to global yielding under different loading orientations.Structures with lower slenderness ratios tend to exhibit global yielding,while those with higher slenderness ratios are prone to layer-by-layer compression failure.Furthermore,lattices supported along the face diagonals demonstrate more uniform global deformation,whereas those supported along the body diagonals are characterized by localized deformation.
Keywords：Finite element analysisPorous lattice structureGibson-Ashby modelProgressive collapseFailure mode
Publication Date：2025-09-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：8( 72-79 )