Detail publikace

Estimation of the effective elastic constants of bone scaffolds fabricated by direct ink writing

SKALKA, P. SLÁMEČKA, K. MONTUFAR JIMENEZ, E. ČELKO, L.

Originální název

Estimation of the effective elastic constants of bone scaffolds fabricated by direct ink writing

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Direct ink writing is a popular method for fabrication of scaffolds, yet its widespread usage in clinical practice requires guarantee of compatibility of a scaffold with bone tissues. Mechanical compatibility is mandatory to prevent stress shielding and is expressed using the difference between effective elastic constants (EECs) of a scaffold and tissue. In this paper, the solution for EECs of a calcium phosphate scaffold is derived for any combination of input parameters, inclusive of the contact radius at the joints, a feature arising mainly from the rheological properties of the ink. The model was validated by the comparison with data from the literature and those obtained from tests on produced scaffolds and monoliths. The contact radius significantly influences the elastic response and local stresses in the structure. The inverse solution can be used for estimation of bulk properties and is also helpful for the quality assessment of fabrication process.

Klíčová slova

Bone scaffold; Direct ink writing; Bioceramics; Effective elastic constants; Finite element modelling

Autoři

SKALKA, P.; SLÁMEČKA, K.; MONTUFAR JIMENEZ, E.; ČELKO, L.

Vydáno

1. 4. 2019

Nakladatel

Elsevier Ltd.

Místo

Velká Británie

ISSN

0955-2219

Periodikum

Journal of the European Ceramic Society

Ročník

39

Číslo

4

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1586

Strany do

1594

Strany počet

9

URL

https://www.sciencedirect.com/science/article/pii/S0955221918307398?via%3Dihub

Plný text v Digitální knihovně

http://hdl.handle.net/11012/244133

BibTex

@article{BUT153381,
  author="Petr {Skalka} and Karel {Slámečka} and Edgar Benjamin {Montufar Jimenez} and Ladislav {Čelko}",
  title="Estimation of the effective elastic constants of bone scaffolds fabricated by direct ink writing",
  journal="Journal of the European Ceramic Society",
  year="2019",
  volume="39",
  number="4",
  pages="1586--1594",
  doi="10.1016/j.jeurceramsoc.2018.12.024",
  issn="0955-2219",
  url="https://www.sciencedirect.com/science/article/pii/S0955221918307398?via%3Dihub"
}