Publication detail

Application of the coupled stress-energy criterion to predict the fracture behaviour of layered ceramics designed with internal compressive stresses

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

Original Title

Application of the coupled stress-energy criterion to predict the fracture behaviour of layered ceramics designed with internal compressive stresses

Type

journal article in Web of Science

Language

English

Original Abstract

In this work, a coupled stress-energy criterion is used to predict the initiation and propagation of surface cracks in ceramic laminates upon thermo-mechanical loading. Experiments were conducted on V-notched alumina-based laminates to show the effect of residual stresses and mechanical loading on their fracture behaviour. The conditions for crack initiation as predicted for notched specimens agreed with the experimental observations. It is shown that the onset of cracks from V-notches is associated with (i) the tensile residual stresses in the first surface layer and (ii) the depth of the notch. The further propagation of the crack into the first embedded compressive layer was also studied. Based upon the coupled criterion, a short penetration of the propagating crack into the first compressive is foreseen. If the mechanical load is increased, the crack finally deflects within the compressive layer propagating with a certain angle which is also predicted with a good accuracy.

Keywords

Layered ceramics, Residual stresses, Crack initiation

Authors

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

RIV year

2015

Released

1. 12. 2015

Publisher

Elsevier

Location

Francie

ISBN

0997-7538

Periodical

EUROPEAN JOURNAL OF MECHANICS A-SOLIDS

Year of study

2015

Number

54

State

Kingdom of the Netherlands

Pages from

94

Pages to

104

Pages count

11

BibTex

@article{BUT115339,
  author="Dominique {Leguillon} and Éric {Martin} and Oldřich {Ševeček} and Raul {Bermejo}",
  title="Application of the coupled stress-energy criterion to predict the fracture behaviour of layered ceramics designed with internal compressive stresses",
  journal="EUROPEAN JOURNAL OF MECHANICS A-SOLIDS",
  year="2015",
  volume="2015",
  number="54",
  pages="94--104",
  doi="10.1016/j.euromechsol.2015.06.008",
  issn="0997-7538"
}