Compressive properties of auxetic structures produced with direct 3D printing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378297%3A_____%2F16%3A00464513" target="_blank" >RIV/68378297:_____/16:00464513 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21260/16:00309208
Result on the web
<a href="http://mit.imt.si/Revija/izvodi/mit163/koudelka.pdf" target="_blank" >http://mit.imt.si/Revija/izvodi/mit163/koudelka.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17222/mit.2014.204" target="_blank" >10.17222/mit.2014.204</a>
Alternative languages
Result language
angličtina
Original language name
Compressive properties of auxetic structures produced with direct 3D printing
Original language description
In the presented paper, three types of auxetic structures were produced with direct 3D printing and their compressive mechanical properties were tested. Samples were prepared from acrylic material suitable for high-resolution direct printing. Three different structures exhibiting in-plane and volumetric negative strain-dependent Poisson’s ratio were selected for the analysis: two-dimensional missing-rib cut, two-dimensional inverted (re-entrant) honeycomb and three-dimensional inverted (re-entrant) honeycomb. The samples were subjected to quasi-static compression, from which stress-strain relationships were established.nFor a proper strain evaluation, digital-image correlation was applied to measure full-field displacements on the sample surfaces. From the displacement fields, true strain/true stress curves were derived for each sample. Furthermore, for each structure a three-dimensional FE model was developed using beam elements and subjected to identical loading conditions. Then, experimentally obtained stress-strain relationships were compared with numerically obtained results. For all the tested auxetic structures, the compressive behaviour was predicted well by the FE models. This demonstrates that parametric FE models can be used to tune the design parameters of the structures with a negative Poisson’s ratio to optimize their overall properties.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
JJ - Other materials
OECD FORD branch
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Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materials and Technology
ISSN
1580-2949
e-ISSN
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Volume of the periodical
50
Issue of the periodical within the volume
3
Country of publishing house
SI - SLOVENIA
Number of pages
7
Pages from-to
311-317
UT code for WoS article
000385008500005
EID of the result in the Scopus database
2-s2.0-84975034792