Static behavior of lattice structures produced via direct metal laser sintering technology
[ X ]
Tarih
2017
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Ltd
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The aim of this scientific work was the analysis of the micro lattice structures under uniaxial quasi-static compression loading with regard to the effect of unit cell size and strut diameter. A wide range of cubic lattice blocks designed in a CAD software were fabricated using Ti6Al4V (Ti64) metal powder and two different production parameters in the direct metal laser sintering machine. The failure modes of the specimens were investigated and the 3D Computed Tomography system was used for the morphological analysis of the struts. An analytical model, developed by Gibson and Ashby, was adapted to the titanium body centered cubic lattices in order to predict their mechanical properties for compressive loading. Moreover, the compressive responses of the lattice structures were also studied using a numerical approach based on finite element analysis. Both experimental and theoretical results presented good agreement in terms of mechanical properties of the body centered cubic lattices and showed that such structures are great energy absorbers. Theoretical approaches gave significant results on the predictions of mechanical properties of these cellular structures, which are suitable for biomedical and transport engineering applications, in order to save manufacturing cost and time. © 2017 Elsevier Ltd
Açıklama
Anahtar Kelimeler
Computed Tomography, Direct Metal Laser Sintering, Finite Element Analysis, Light-Weight Structures, Micro Lattice Structures
Kaynak
Materials and Design
WoS Q Değeri
N/A
Scopus Q Değeri
Q1
Cilt
135
Sayı
Künye
Crupi, V., Kara, E., Epasto, G., Guglielmino, E., Aykul, H. (2017). Static behavior of lattice structures produced via direct metal laser sintering technology. Materials & Design, 135, 246-256.
