Publication result detail

Computational analysis of crack bridging in Bioglass®–based porous scaffolds by using polymer coatings

KOTOUL, M.; SKALKA, P.

Original Title

Computational analysis of crack bridging in Bioglass®–based porous scaffolds by using polymer coatings

English Title

Computational analysis of crack bridging in Bioglass®–based porous scaffolds by using polymer coatings

Type

Paper in proceedings (conference paper)

Original Abstract

The main drawback still impairing the use of bioactive glasses in load-bearing applications is their intrinsic brittleness. The addition of coating constituted by polyvinyl alcohol (PVA) and microfibrillated cellulose (MFC) PVA/MFC led to a 10 fold increase of compressive strength and a 20 fold increase of tensile strength in comparison with non-coated scaffolds. Crack bridging by polymer coating was identified by fractographic observations as a main toughening mechanism. In this contribution a detailed computational analysis of crack bridging due to coating film fibrils is presented and an improvement of fracture resistance of coated scaffolds is explained.

English abstract

The main drawback still impairing the use of bioactive glasses in load-bearing applications is their intrinsic brittleness. The addition of coating constituted by polyvinyl alcohol (PVA) and microfibrillated cellulose (MFC) PVA/MFC led to a 10 fold increase of compressive strength and a 20 fold increase of tensile strength in comparison with non-coated scaffolds. Crack bridging by polymer coating was identified by fractographic observations as a main toughening mechanism. In this contribution a detailed computational analysis of crack bridging due to coating film fibrils is presented and an improvement of fracture resistance of coated scaffolds is explained.

Keywords

bioactive glass scaffold, crack bridging, FE modeling, toughening mechanism

Key words in English

bioactive glass scaffold, crack bridging, FE modeling, toughening mechanism

Authors

KOTOUL, M.; SKALKA, P.

RIV year

2018

Released

05.01.2017

Publisher

Trans Tech Publications

Location

Switzerland

ISBN

978-3-03835-626-4

Book

Materials Structure and Micromechanics of Fracture VIII

ISBN

1012-0394

Periodical

Solid State Phenomena

State

Swiss Confederation

Pages from

325

Pages to

328

Pages count

4

BibTex

@inproceedings{BUT132102,
  author="Michal {Kotoul} and Petr {Skalka}",
  title="Computational analysis of crack bridging in Bioglass®–based porous scaffolds by using polymer coatings",
  booktitle="Materials Structure and Micromechanics of Fracture VIII",
  year="2017",
  journal="Solid State Phenomena",
  pages="325--328",
  publisher="Trans Tech Publications",
  address="Switzerland",
  doi="10.4028/www.scientific.net/SSP.258.325",
  isbn="978-3-03835-626-4",
  issn="1012-0394"
}