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

Aydin G., Sarar B. C., Yıldızdağ M. E., Abali B. E.

MATHEMATICS AND MECHANICS OF SOLIDS, cilt.27, sa.10, ss.2002-2016, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 27 Sayı: 10
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1177/10812865221100978
  • Dergi Adı: MATHEMATICS AND MECHANICS OF SOLIDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, zbMATH, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.2002-2016
  • Anahtar Kelimeler: Strain-gradient theory, homogenization, additive manufacturing, infill density, infill pattern, metamaterials, PANTOGRAPHIC SHEETS, CONTINUUM MODEL, DISCRETE, DESIGN, DEFORMATIONS, MECHANICS
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

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.