Publication detail

Prediction of the crack bifurcation in layered ceramics with high residual stresses

ŠEVEČEK, O. BERMEJO, R. KOTOUL, M.

Czech title

Predikce bifurkace trhliny ve vrstvených keramikách s vysokými residuálními napětími

English title

Prediction of the crack bifurcation in layered ceramics with high residual stresses

Type

journal article - other

Language

en

Original abstract

A computational tool, aiming to predict the crack propagation (i.e. straight propagation, single deflection or bifurcation) in layered ceramics designed with internal residual stres- ses, is developed. The computational model is based on Finite Fracture Mechanics theory, especially focused on cracks terminating at the interface between two different material layers. The method utilises a matched asymptotic procedure to derive the change of potential energy associated with the fracture process. A combined loading (thermal and mechanical) is taken into consideration to clarify the influence of the residual stresses on the crack path during fracture.

Czech abstract

A computational tool, aiming to predict the crack propagation (i.e. straight propagation, single deflection or bifurcation) in layered ceramics designed with internal residual stres- ses, is developed. The computational model is based on Finite Fracture Mechanics theory, especially focused on cracks terminating at the interface between two different material layers. The method utilises a matched asymptotic procedure to derive the change of potential energy associated with the fracture process. A combined loading (thermal and mechanical) is taken into consideration to clarify the influence of the residual stresses on the crack path during fracture.

English abstract

A computational tool, aiming to predict the crack propagation (i.e. straight propagation, single deflection or bifurcation) in layered ceramics designed with internal residual stres- ses, is developed. The computational model is based on Finite Fracture Mechanics theory, especially focused on cracks terminating at the interface between two different material layers. The method utilises a matched asymptotic procedure to derive the change of potential energy associated with the fracture process. A combined loading (thermal and mechanical) is taken into consideration to clarify the influence of the residual stresses on the crack path during fracture.

Keywords in Czech

Keramické lamináty; Residuální napětí; Ohyb trhliny; Bifurkace trhliny; Konečná lomová mechanika

Keywords in English

Ceramic laminates; Residual stresses; Crack deflection; Crack bifurcation; Finite fracture mechanics

RIV year

2013

Released

01.08.2013

Publisher

Elsevier

Location

Holandsko

ISSN

0013-7944

Volume

2013

Number

108

Pages from–to

120–138

Pages count

19

BIBTEX


@article{BUT100781,
  author="Oldřich {Ševeček} and Raul {Bermejo} and Michal {Kotoul},
  title="Prediction of the crack bifurcation in layered ceramics with high residual stresses",
  year="2013",
  volume="2013",
  number="108",
  month="August",
  pages="120--138",
  publisher="Elsevier",
  address="Holandsko",
  issn="0013-7944"
}