Effective Young's modulus of highly porous 3D printed mono-material and coaxial structures

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F24%3A00599691" target="_blank" >RIV/61388998:_____/24:00599691 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0955221924006447?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0955221924006447?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jeurceramsoc.2024.116771" target="_blank" >10.1016/j.jeurceramsoc.2024.116771</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Effective Young's modulus of highly porous 3D printed mono-material and coaxial structures

Popis výsledku v původním jazyce

The dynamic elastic response of 3D macroporous scaffolds is crucial to determine their performance under operating conditions. In this work, the elastic behaviour of 3D printed bar-shaped scaffolds of gamma-Al2O3 2 O 3 and gamma-Al2O3/graphene 2 O 3 /graphene nanoplatelets (GNP) composites (18 vol%), fabricated by Direct Ink Writing (DIW), is investigated. Dynamic Young's modulus (E) is studied by the Impulse Excitation Technique (IET) and compared with theoretical results obtained by Finite Element Methods (FEM) and the multi-scale material simulator GeoDict (R). (R). In addition, Resonant Ultrasound Spectroscopy (RUS) is used to characterize E of single- and bi-material coaxial struts. While additions of GNP to gamma-Al2O3 2 O 3 lead to an increase in E, it decreases in the coaxial struts due to the development of thermal residual stresses at the core/shell interface. The suitability of combining experimental and theoretical methods for the analysis of the elastic properties and the anisotropy associated with the lattice pattern is demonstrated.

Název v anglickém jazyce

Effective Young's modulus of highly porous 3D printed mono-material and coaxial structures

Popis výsledku anglicky

The dynamic elastic response of 3D macroporous scaffolds is crucial to determine their performance under operating conditions. In this work, the elastic behaviour of 3D printed bar-shaped scaffolds of gamma-Al2O3 2 O 3 and gamma-Al2O3/graphene 2 O 3 /graphene nanoplatelets (GNP) composites (18 vol%), fabricated by Direct Ink Writing (DIW), is investigated. Dynamic Young's modulus (E) is studied by the Impulse Excitation Technique (IET) and compared with theoretical results obtained by Finite Element Methods (FEM) and the multi-scale material simulator GeoDict (R). (R). In addition, Resonant Ultrasound Spectroscopy (RUS) is used to characterize E of single- and bi-material coaxial struts. While additions of GNP to gamma-Al2O3 2 O 3 lead to an increase in E, it decreases in the coaxial struts due to the development of thermal residual stresses at the core/shell interface. The suitability of combining experimental and theoretical methods for the analysis of the elastic properties and the anisotropy associated with the lattice pattern is demonstrated.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20501 - Materials engineering

Projekt

<a href="/cs/project/GC24-11074J" target="_blank" >GC24-11074J: Moderní a funkčně gradované slitiny titanu připravené metodou selektivního laserového tavení</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of the European Ceramic Society

ISSN

0955-2219

e-ISSN

1873-619X

Svazek periodika

44

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

116771

Kód UT WoS článku

001282155000001

EID výsledku v databázi Scopus

2-s2.0-85199537392