Strategies to Optimize the Strength and Fracture Resistance of Ceramic Laminates

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Strategies to Optimize the Strength and Fracture Resistance of Ceramic Laminates

Popis výsledku v původním jazyce

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 ofa 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 lowe

Název v anglickém jazyce

Strategies to Optimize the Strength and Fracture Resistance of Ceramic Laminates

Popis výsledku anglicky

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 ofa 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 lowe

Druh

C - Kapitola v odborné knize

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2012

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Mechanical Properties and Performance of Engineering Ceramics and Composites VII

ISBN

9781118205884

Počet stran výsledku

12

Strana od-do

163-174

Počet stran knihy

330

Název nakladatele

John Wiley & Sons, Inc.

Místo vydání

Hoboken, NJ, USA

Kód UT WoS kapitoly

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