Mechanical responses and energy absorption characteristics of a novel functionally graded voxel lattice structure

Sihang Xiao, Qi Li, Heran Jia, Fei Wang, Jingjing Gao, Wenliang Lv, Junfeng Qi, Shengyu Duan*, Panding Wang, Hongshuai Lei

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Functionally graded lattice structures have attracted considerable interest owing to their superior mechanical performance compared to traditional uniform structures. In this paper, a novel voxel lattice unit cell with multiple symmetrical struts was designed, and graded lattice structures with variable densities were proposed. Quasi-static compression tests and numerical simulations were conducted to investigate mechanical responses, deformation modes, and energy absorption abilities. The results demonstrated that graded design enabled tunable deformation and a significant 20.3 % increase in specific energy absorption compared to uniform structures. This study expands the design space of functionally graded lattice structures and highlights their significance in practice.

Original languageEnglish
Article number111244
JournalThin-Walled Structures
Volume193
DOIs
Publication statusPublished - Dec 2023

Keywords

  • Deformation mode
  • Energy absorption
  • Lattice structure
  • Mechanical performance
  • Relative density gradient

Fingerprint

Dive into the research topics of 'Mechanical responses and energy absorption characteristics of a novel functionally graded voxel lattice structure'. Together they form a unique fingerprint.

Cite this

Xiao, S., Li, Q., Jia, H., Wang, F., Gao, J., Lv, W., Qi, J., Duan, S., Wang, P., & Lei, H. (2023). Mechanical responses and energy absorption characteristics of a novel functionally graded voxel lattice structure. Thin-Walled Structures, 193, Article 111244. https://doi.org/10.1016/j.tws.2023.111244