Detail publikace

Crack Growth in Ceramic Laminates with Strong Interfaces and Large Compressive Residual Stresses

KOTOUL, M. ŠEVEČEK, O. VYSLOUŽIL, T.

Anglický název

Crack Growth in Ceramic Laminates with Strong Interfaces and Large Compressive Residual Stresses

Typ

Článek WoS

Jazyk

en

Originální abstrakt

Residual compressive stresses developed in layered ceramics may improve the crack resistance of the material during crack growth by reducing the crack driving force at the crack tip. i.e. R-curve behaviour occurs. Elastic contrast of layers often plays an important role by inducing an additional crack driving force term which can promote (anti-shield) or retard (shield) the crack propagation. Since the toughening effect of the residual stress state is often predicted by means of the weight function method, it is matter of interest to find limits for the application of weight function concept in elastically inhomogeneous laminates. Another objective of the paper is to investigate in detail the very process of crack transition across thermo-elastically mismatched layer interfaces. Due to the discontinuity in the elastic properties, finite crack extensions are to be considered instead of infinitesimal one. The concept of Finite Fracture Mechanics (FFM) is applied to tackle this problem.

Klíčová slova anglicky

Ceramic laminates; FEM; R-curve; residual stresses; bimaterial interface; finite fracture mechanics.

Vydáno

2012-10-15

ISSN

0167-8442

Ročník

2012 (61)

Číslo

1

Strany od–do

40–50

Počet stran

11

BIBTEX


@article{BUT95677,
  author="Michal {Kotoul} and Oldřich {Ševeček} and Tomáš {Vysloužil}",
  title="Crack Growth in Ceramic Laminates with Strong Interfaces and Large Compressive Residual Stresses",
  journal="THEORETICAL AND APPLIED FRACTURE MECHANICS",
  year="2012",
  volume="2012 (61)",
  number="1",
  pages="40--50",
  doi="10.1016/j.tafmec.2012.08.005",
  issn="0167-8442"
}