Detail publikace

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

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

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

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

Autoři

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

Vydáno

19. 9. 2018

Nakladatel

Elsevier

Místo

Netherlands

ISSN

0013-7944

Periodikum

Engineering Fracture Mechanics

Ročník

201

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

167

Strany do

175

Strany počet

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"
}