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Free boundary effects and representative volume elements in 3D printed Ti-6Al-4V gyroid structures

Publication ,  Journal Article
Pham, A; Kelly, C; Gall, K
Published in: Journal of Materials Research
October 14, 2020

The adoption of selective laser melting (SLM) for fabrication of porous titanium has resulted in many new investigations into the complex design parameters associated with porous architecture of high spatial resolution. The development of meta-materials has included research into the effects of unit cell architecture (strut versus sheet), porosity, pore size, and other factors on the performance of metallic scaffolds. The current study examined the interactive effects of varying the gyroid sheet unit cell size and overall specimen size on the compressive behavior of Ti-6Al-4V ELI porous scaffolds manufactured via SLM. The increasing unit cell size relative to specimen geometry was found to decrease the compressive strength and stiffness of the overall structure and shift the material fracture mode. The understanding of the relationship between unit cell size and specimen geometry can be used to optimize mechanical properties of implants with constrained volumes and pore/wall size requirements to optimize properties of porous titanium implants for strength and osseointegration.

Duke Scholars

Published In

Journal of Materials Research

DOI

EISSN

2044-5326

ISSN

0884-2914

Publication Date

October 14, 2020

Volume

35

Issue

19

Start / End Page

2547 / 2555

Related Subject Headings

  • Materials
  • 5104 Condensed matter physics
  • 4017 Mechanical engineering
  • 4016 Materials engineering
  • 0913 Mechanical Engineering
  • 0912 Materials Engineering
  • 0204 Condensed Matter Physics
 

Citation

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Pham, A., Kelly, C., & Gall, K. (2020). Free boundary effects and representative volume elements in 3D printed Ti-6Al-4V gyroid structures. Journal of Materials Research, 35(19), 2547–2555. https://doi.org/10.1557/jmr.2020.105
Pham, A., C. Kelly, and K. Gall. “Free boundary effects and representative volume elements in 3D printed Ti-6Al-4V gyroid structures.” Journal of Materials Research 35, no. 19 (October 14, 2020): 2547–55. https://doi.org/10.1557/jmr.2020.105.
Pham A, Kelly C, Gall K. Free boundary effects and representative volume elements in 3D printed Ti-6Al-4V gyroid structures. Journal of Materials Research. 2020 Oct 14;35(19):2547–55.
Pham, A., et al. “Free boundary effects and representative volume elements in 3D printed Ti-6Al-4V gyroid structures.” Journal of Materials Research, vol. 35, no. 19, Oct. 2020, pp. 2547–55. Scopus, doi:10.1557/jmr.2020.105.
Pham A, Kelly C, Gall K. Free boundary effects and representative volume elements in 3D printed Ti-6Al-4V gyroid structures. Journal of Materials Research. 2020 Oct 14;35(19):2547–2555.
Journal cover image

Published In

Journal of Materials Research

DOI

EISSN

2044-5326

ISSN

0884-2914

Publication Date

October 14, 2020

Volume

35

Issue

19

Start / End Page

2547 / 2555

Related Subject Headings

  • Materials
  • 5104 Condensed matter physics
  • 4017 Mechanical engineering
  • 4016 Materials engineering
  • 0913 Mechanical Engineering
  • 0912 Materials Engineering
  • 0204 Condensed Matter Physics