Publication detail

Understanding the tensile strength of ceramics in the presence of small critical flaws

MARTIN, É. LEGUILLON, D. ŠEVEČEK, O. BERMEJO, R.

Original Title

Understanding the tensile strength of ceramics in the presence of small critical flaws

Type

journal article in Web of Science

Language

English

Original Abstract

The effect of small critical flaws on the strength of polycrystalline ceramic materials is analyzed with the help of an initiation criterion combining both a stress and an energy conditions. If the size of the defect is smaller than the characteristic material length, numerical predictions reveal that the defect (either sharp or blunt) has no effect on the strength. This result is in a good agreement with experimental results obtained from the strength measurements of ceramic materials with controlled flaws. Combining two fracture tests after introducing flaws with controlled sizes enables to identify the fracture parameters of the ceramic material.

Keywords

Crack nucleation; Coupled criterion; Finite fracture mechanics; Tensile strength; Ceramics

Authors

MARTIN, É.; LEGUILLON, D.; ŠEVEČEK, O.; BERMEJO, R.

Released

19. 9. 2018

Publisher

Elsevier

Location

Netherlands

ISBN

0013-7944

Periodical

Engineering Fracture Mechanics

Year of study

201

Number

1

State

United Kingdom of Great Britain and Northern Ireland

Pages from

167

Pages to

175

Pages count

9

URL

https://reader.elsevier.com/reader/sd/51A01BFC59335385F91D0A49224CC592F2F1F6AF6A233B7ADE2E45A2AA0EC85AEB91FD9C434B4C192F4BF190AC9AAC72

BibTex

@article{BUT149056,
  author="Éric {Martin} and Dominique {Leguillon} and Oldřich {Ševeček} and Raul {Bermejo}",
  title="Understanding the tensile strength of ceramics in the presence of small critical flaws",
  journal="Engineering Fracture Mechanics",
  year="2018",
  volume="201",
  number="1",
  pages="167--175",
  doi="10.1016/j.engfracmech.2018.06.021",
  issn="0013-7944",
  url="https://reader.elsevier.com/reader/sd/51A01BFC59335385F91D0A49224CC592F2F1F6AF6A233B7ADE2E45A2AA0EC85AEB91FD9C434B4C192F4BF190AC9AAC72"
}