Detail publikačního výsledku

Crack bridging modelling in Bioglass ®based scaffolds reinforced by poly-vinyl alcohol/microfibrillated cellulose composite coating

KOTOUL, M.; SKALKA, P.; ŠEVEČEK, O.; BERTOLLA, L.; MERTENS, J.;MARCIÁN, P.; CHAWLA, N.

Originální název

Crack bridging modelling in Bioglass ®based scaffolds reinforced by poly-vinyl alcohol/microfibrillated cellulose composite coating

Anglický název

Crack bridging modelling in Bioglass ®based scaffolds reinforced by poly-vinyl alcohol/microfibrillated cellulose composite coating

Druh

Článek WoS

Originální abstrakt

The paper deals with crack bridging modelling in Bioglass ®based scaffolds due the presence of a spe- cial polymer coating. This includes a careful modelling of the scaffold which is based on x-ray computed micro-tomography (micro-CT) scans and identification of bridging mechanism with the aid of extensive fractographic observations of coated, broken struts. A replacement of the real structure of scaffold by a periodic model utilizing Kelvin cell whose size corresponds to the mean cell size of the real foam is discussed. The struts of the idealized foam are modelled using the beam elements. A detailed computa- tional analysis of crack bridging due to coating film fibrils under plane strain conditions is presented and an improvement of fracture resistance of coated scaffolds is explained.

Anglický abstrakt

The paper deals with crack bridging modelling in Bioglass ®based scaffolds due the presence of a spe- cial polymer coating. This includes a careful modelling of the scaffold which is based on x-ray computed micro-tomography (micro-CT) scans and identification of bridging mechanism with the aid of extensive fractographic observations of coated, broken struts. A replacement of the real structure of scaffold by a periodic model utilizing Kelvin cell whose size corresponds to the mean cell size of the real foam is discussed. The struts of the idealized foam are modelled using the beam elements. A detailed computa- tional analysis of crack bridging due to coating film fibrils under plane strain conditions is presented and an improvement of fracture resistance of coated scaffolds is explained.

Klíčová slova

Irregular foam structure; Voronoi tessellation; FEM; Polymer coating; Crack bridging

Klíčová slova v angličtině

Irregular foam structure; Voronoi tessellation; FEM; Polymer coating; Crack bridging

Autoři

KOTOUL, M.; SKALKA, P.; ŠEVEČEK, O.; BERTOLLA, L.; MERTENS, J.;MARCIÁN, P.; CHAWLA, N.

Rok RIV

2018

Vydáno

19.04.2017

Nakladatel

Elsevier

ISSN

0167-6636

Periodikum

MECHANICS OF MATERIALS

Svazek

110

Číslo

1

Stát

Nizozemsko

Strany od

16

Strany do

28

Strany počet

13

URL

http://www.sciencedirect.com.ezproxy.lib.vutbr.cz/science/article/pii/S0167663616301685

BibTex

@article{BUT137250,
  author="KOTOUL, M. and SKALKA, P. and ŠEVEČEK, O. and BERTOLLA, L. and MERTENS, J. and MARCIÁN, P. and CHAWLA, N.",
  title="Crack bridging modelling in Bioglass ®based scaffolds reinforced by poly-vinyl alcohol/microfibrillated cellulose composite coating",
  journal="MECHANICS OF MATERIALS",
  year="2017",
  volume="110",
  number="1",
  pages="16--28",
  doi="10.1016/j.mechmat.2017.04.004",
  issn="0167-6636",
  url="http://www.sciencedirect.com.ezproxy.lib.vutbr.cz/science/article/pii/S0167663616301685"
}