Investigating infill density and pattern effects in additive manufacturing by characterizing metamaterials along the strain-gradient theory

Gokhan Aydin, B. Cagri Sarar, M. Erden Yildizdag, B. Emek Abali*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

Infill density used in additive manufacturing incorporates a structural response change in the structure. Infill pattern creates a microstructure that affects the mechanical performance as well. Whenever the length ratio of microstructure to geometry converges to one, metamaterials emerge and the strain-gradient theory is an adequate model to predict metamaterials response. All metamaterial parameters are determined by an asymptotic homogenization, and we investigate the effects of infill density and pattern on these parameters. In order to illuminate the role of infill characteristics on the strain-gradient parameters, an in-depth numerical investigation is presented for one, widely used case in three-dimensional (3D) printers, rectangular grid.

Original languageEnglish
Pages (from-to)2002-2016
Number of pages15
JournalMathematics and Mechanics of Solids
Volume27
Issue number10
DOIs
Publication statusPublished - Oct 2022

Bibliographical note

Publisher Copyright:
© The Author(s) 2022.

Keywords

  • additive manufacturing
  • homogenization
  • infill density
  • infill pattern
  • metamaterials
  • Strain-gradient theory

Fingerprint

Dive into the research topics of 'Investigating infill density and pattern effects in additive manufacturing by characterizing metamaterials along the strain-gradient theory'. Together they form a unique fingerprint.

Cite this