Microindentation Test Modelling in the Silicon Nitride Ceramics

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

Microindentation Test Modelling in the Silicon Nitride Ceramics

Popis výsledku v původním jazyce

Silicon nitride based ceramics have received considerable attention during the last decades due to their very good room and high-temperature properties. Such ceramics are acknowledged as first choice for application of modern hybrid bearing applications.The influence of crack bridging by the elongated grains present in the microstructure on the strength and toughness is well known phenomenon from the side of experimental observation. The modelling of this complex microstructure by classical continuum mechanic approach usually do not provide sufficient results. The prediction of the crack propagation through interface elements based on the fracture mechanics approach and cohesive zone model was investigated. The cohesive models seem to be especially attractive for practical applications in case of silicon nitride based ceramics. The behaviour of such materials was studied by two types of elements using cohesive models. The former is the element for the classical continuum and the latte

Název v anglickém jazyce

Microindentation Test Modelling in the Silicon Nitride Ceramics

Popis výsledku anglicky

Silicon nitride based ceramics have received considerable attention during the last decades due to their very good room and high-temperature properties. Such ceramics are acknowledged as first choice for application of modern hybrid bearing applications.The influence of crack bridging by the elongated grains present in the microstructure on the strength and toughness is well known phenomenon from the side of experimental observation. The modelling of this complex microstructure by classical continuum mechanic approach usually do not provide sufficient results. The prediction of the crack propagation through interface elements based on the fracture mechanics approach and cohesive zone model was investigated. The cohesive models seem to be especially attractive for practical applications in case of silicon nitride based ceramics. The behaviour of such materials was studied by two types of elements using cohesive models. The former is the element for the classical continuum and the latte

Druh

O - Ostatní výsledky

CEP obor

JL - Únava materiálu a lomová mechanika

OECD FORD obor

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Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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