Mechanical Properties of Porous Structures for Dental Implants: Experimental Study and Computational Homogenization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F21%3A00350861" target="_blank" >RIV/68407700:21110/21:00350861 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.3390/ma14164592" target="_blank" >https://doi.org/10.3390/ma14164592</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/ma14164592" target="_blank" >10.3390/ma14164592</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Mechanical Properties of Porous Structures for Dental Implants: Experimental Study and Computational Homogenization

Popis výsledku v původním jazyce

A combined experimental and numerical study on titanium porous microstructures intended to interface the bone tissue and the solid homogeneous part of a modern dental implant is presented. A specific class of trabecular geometries is compared to a gyroid structure. Limitations associated with the application of the adopted selective laser melting technology to small microstructures with a pore size of 0.5 mm are first examined experimentally. The measured effective elastic properties of trabecular structures made of Ti6Al4V material support the computational framework based on homogenization with the difference between the measured and predicted Young's moduli of the Dode Thick structure being less than 5 %. In this regard, the extended finite element method is promoted, particularly in light of the complex sheet gyroid studied next. While for plastic material-based structures a close match between experiments and simulations was observed, an order of magnitude difference was encountered for titanium specimens. This calls for further study and we expect to reconcile this inconsistency with the help of computational microtomography.

Název v anglickém jazyce

Mechanical Properties of Porous Structures for Dental Implants: Experimental Study and Computational Homogenization

Popis výsledku anglicky

A combined experimental and numerical study on titanium porous microstructures intended to interface the bone tissue and the solid homogeneous part of a modern dental implant is presented. A specific class of trabecular geometries is compared to a gyroid structure. Limitations associated with the application of the adopted selective laser melting technology to small microstructures with a pore size of 0.5 mm are first examined experimentally. The measured effective elastic properties of trabecular structures made of Ti6Al4V material support the computational framework based on homogenization with the difference between the measured and predicted Young's moduli of the Dode Thick structure being less than 5 %. In this regard, the extended finite element method is promoted, particularly in light of the complex sheet gyroid studied next. While for plastic material-based structures a close match between experiments and simulations was observed, an order of magnitude difference was encountered for titanium specimens. This calls for further study and we expect to reconcile this inconsistency with the help of computational microtomography.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GA18-24867S" target="_blank" >GA18-24867S: Víceúrovňové modelování mechanických vlastností heterogenních materiálů a konstrukcí na PC klastrech</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Materials

ISSN

1996-1944

e-ISSN

1996-1944

Svazek periodika

14

Číslo periodika v rámci svazku

16

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

25

Strana od-do

1-25

Kód UT WoS článku

000690502600001

EID výsledku v databázi Scopus

2-s2.0-85113291700