MICROMECHANICAL SIMULATION OF A DENTAL COMPOSITE WITH A DIFFERENCE BETWEEN TENSILE AND COMPRESSIVE STIFFNESS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F10%3A00174478" target="_blank" >RIV/68407700:21220/10:00174478 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

MICROMECHANICAL SIMULATION OF A DENTAL COMPOSITE WITH A DIFFERENCE BETWEEN TENSILE AND COMPRESSIVE STIFFNESS

Popis výsledku v původním jazyce

This study is focused on a FE simulation of an advanced dental composite of polymer resin and silica particles with an experimentally observed difference between tensional and compressive stiffness in the one-dimensional test. Relationship between the difference of stiffness values and the phenomenon of the shrinkage during the curing process is discussed. Technique used to simulate the experiment is based on a thermal analogy of the shrinkage process, which the dental resin undergoes during polymerization. The nature of developed shrinkage stress and strain field is studied, and the influence of the yielding status in certain material points on the local and overall mechanical performance is simulated. Particle distribution in the material is simulated by three models, inspired by crystallographic arrays, and the influence of particle volume fraction, distribution and mutual distance is taken into account.

Název v anglickém jazyce

MICROMECHANICAL SIMULATION OF A DENTAL COMPOSITE WITH A DIFFERENCE BETWEEN TENSILE AND COMPRESSIVE STIFFNESS

Popis výsledku anglicky

This study is focused on a FE simulation of an advanced dental composite of polymer resin and silica particles with an experimentally observed difference between tensional and compressive stiffness in the one-dimensional test. Relationship between the difference of stiffness values and the phenomenon of the shrinkage during the curing process is discussed. Technique used to simulate the experiment is based on a thermal analogy of the shrinkage process, which the dental resin undergoes during polymerization. The nature of developed shrinkage stress and strain field is studied, and the influence of the yielding status in certain material points on the local and overall mechanical performance is simulated. Particle distribution in the material is simulated by three models, inspired by crystallographic arrays, and the influence of particle volume fraction, distribution and mutual distance is taken into account.

Druh

D - Stať ve sborníku

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

<a href="/cs/project/GD101%2F08%2FH068" target="_blank" >GD101/08/H068: Výzkum nových principů mechanických a biomechanických systémů s inteligentním chováním</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

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

Název statě ve sborníku

Proceedings of 12th International Scientific Conference Applied Mechanics 2010

ISBN

978-80-7372-586-0

ISSN

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e-ISSN

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Počet stran výsledku

4

Strana od-do

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Název nakladatele

Technická univerzita

Místo vydání

Liberec

Místo konání akce

Jablonec nad Nisou

Datum konání akce

19. 4. 2010

Typ akce podle státní příslušnosti

CST - Celostátní akce

Kód UT WoS článku

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