Additive Manufacturing of Honeycomb Lattice Structure-From Theoretical Models to Polymer and Metal Products
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26316919%3A_____%2F22%3AN0000004" target="_blank" >RIV/26316919:_____/22:N0000004 - isvavai.cz</a>
Nalezeny alternativní kódy
RIV/68407700:21220/22:00360843
Výsledek na webu
<a href="https://www.mdpi.com/1996-1944/15/5/1838/htm" target="_blank" >https://www.mdpi.com/1996-1944/15/5/1838/htm</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.3390/ma15051838" target="_blank" >10.3390/ma15051838</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Additive Manufacturing of Honeycomb Lattice Structure-From Theoretical Models to Polymer and Metal Products
Popis výsledku v původním jazyce
The study aims to compare mechanical properties of polymer and metal honeycomb lattice structures between a computational model and an experiment. Specimens with regular honeycomb lattice structures made of Stratasys Vero PureWhite polymer were produced using PolyJet technology while identical specimens from stainless steel 316L and titanium alloy Ti6Al4V were produced by laser powder bed fusion. These structures were tested in tension at quasi-static rates of strain, and their effective Young's modulus was determined. Analytical models and finite element models were used to predict effective Young's modulus of the honeycomb structure from the properties of bulk materials. It was shown, that the stiffness of metal honeycomb lattice structure produced by laser powder bed fusion could be predicted with high accuracy by the finite element model. Analytical models slightly overestimate global stiffness but may be used as the first approximation. However, in the case of polymer material, both analytical and FEM modeling significantly overestimate material stiffness. The results indicate that computer modeling could be used with high accuracy to predict the mechanical properties of lattice structures produced from metal powder by laser melting.
Název v anglickém jazyce
Additive Manufacturing of Honeycomb Lattice Structure-From Theoretical Models to Polymer and Metal Products
Popis výsledku anglicky
The study aims to compare mechanical properties of polymer and metal honeycomb lattice structures between a computational model and an experiment. Specimens with regular honeycomb lattice structures made of Stratasys Vero PureWhite polymer were produced using PolyJet technology while identical specimens from stainless steel 316L and titanium alloy Ti6Al4V were produced by laser powder bed fusion. These structures were tested in tension at quasi-static rates of strain, and their effective Young's modulus was determined. Analytical models and finite element models were used to predict effective Young's modulus of the honeycomb structure from the properties of bulk materials. It was shown, that the stiffness of metal honeycomb lattice structure produced by laser powder bed fusion could be predicted with high accuracy by the finite element model. Analytical models slightly overestimate global stiffness but may be used as the first approximation. However, in the case of polymer material, both analytical and FEM modeling significantly overestimate material stiffness. The results indicate that computer modeling could be used with high accuracy to predict the mechanical properties of lattice structures produced from metal powder by laser melting.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
20301 - Mechanical engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/EF17_048%2F0007350" target="_blank" >EF17_048/0007350: Předaplikační výzkum funkčně graduovaných materiálů pomocí aditivních technologií</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Ostatní
Rok uplatnění
2022
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
MATERIALS
ISSN
1996-1944
e-ISSN
1996-1944
Svazek periodika
15
Číslo periodika v rámci svazku
5
Stát vydavatele periodika
CH - Švýcarská konfederace
Počet stran výsledku
11
Strana od-do
nestránkováno
Kód UT WoS článku
000768890200001
EID výsledku v databázi Scopus
2-s2.0-85125815618