Detail publikace

Strategies to Optimize the Strength and Fracture Resistance of Ceramic Laminates

BERMEJO, R. CHLUP, Z. ŠESTÁKOVÁ, L. ŠEVEČEK, O. DANZER, R.

Originální název

Strategies to Optimize the Strength and Fracture Resistance of Ceramic Laminates

Typ

kapitola v knize

Jazyk

angličtina

Originální abstrakt

Layered ceramics, compared to conventional monolithic ceramics, are good choices for highlyloaded structural applications because they exhibit greater fracture resistance, higher strengths and better mechanical reliability (i.e. they are flaw tolerant materials). The use of tailored residual compressive stresses in the layers is a key parameter to adjust these properties. In this work ceramic laminates are analyzed which have internal residual compressive stresses. The most important factors having influence on the strength and fracture resistance of these laminates are discussed. A fracture mechanics analysis is employed to estimate the crack growth resistance of the material as a function of the crack length. It is found that the proper selection of a suitable strain mismatch (responsible for the generation of residual stresses), volume ratio of the layer materials and thickness and distribution of individual layers are crucial to achieve a high fracture resistance and/or a high lower limit (threshold) for strength in ceramic laminates. Design guidelines to avoid cracking of layers associated with high residual stresses are also provided. Design criteria to optimize strength and fracture resistance in advanced ceramics to be used in engineering applications are established.

Klíčová slova

fracture resistance; ceramic laminates; monolithic ceramics; fracture mechanics analysis; residual stresses

Autoři

BERMEJO, R.; CHLUP, Z.; ŠESTÁKOVÁ, L.; ŠEVEČEK, O.; DANZER, R.

Rok RIV

2012

Vydáno

19. 11. 2012

Nakladatel

John Wiley & Sons, Inc.

Místo

Hoboken, NJ, USA

ISBN

9781118205884

Kniha

Mechanical Properties and Performance of Engineering Ceramics and Composites VII

Edice

kniha

Číslo edice

1

Strany od

163

Strany do

174

Strany počet

12

BibTex

@inbook{BUT96698,
  author="Raul {Bermejo} and Zdeněk {Chlup} and Lucie {Malíková} and Oldřich {Ševeček} and Robert {Danzer}",
  title="Strategies to Optimize the Strength and Fracture Resistance of Ceramic Laminates",
  booktitle="Mechanical Properties and Performance of Engineering Ceramics and Composites VII",
  year="2012",
  publisher="John Wiley & Sons, Inc.",
  address="Hoboken, NJ, USA",
  series="kniha",
  edition="1",
  pages="163--174",
  isbn="9781118205884"
}