Deformation mechanisms of auxetic microstructures for energy absorption applications
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21260%2F16%3A00241082" target="_blank" >RIV/68407700:21260/16:00241082 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.4028/www.scientific.net/AMM.821.428" target="_blank" >http://dx.doi.org/10.4028/www.scientific.net/AMM.821.428</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.4028/www.scientific.net/AMM.821.428" target="_blank" >10.4028/www.scientific.net/AMM.821.428</a>
Alternative languages
Result language
angličtina
Original language name
Deformation mechanisms of auxetic microstructures for energy absorption applications
Original language description
In this work parametric modelling was utilized to design and produce two types of porous microarchitectures with auxetic compressive properties suitable for deformation energy mitigation applications such as blast and bullet protection. The samples were directly produced from acrylic amaterial using a high resolution 3D printer and their compressive mechanical characteristics were tested. Two different structures exhibiting in-plane negative strain dependent Poisson’s ratio were selected for the analysis: i) two-dimensional inverted (re-entrant) honeycomb and ii) two-dimensional cut missing-rib. Stress-strain relationships were established from a set of quasi-static compressional experiments where the strain fields were evaluated using digital image correlation applied to measure the full-field displacements on the samples' surface. From the displacement fields true strain – true stress curves were derived for each sample and relative elastic moduli were evaluated.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GA15-15480S" target="_blank" >GA15-15480S: Optimized auxetic structures for cellular metals filled with strain rate sensitive material for high velocity impacts</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Engineering Mechanics 2015
ISBN
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ISSN
1662-7482
e-ISSN
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Number of pages
7
Pages from-to
428-434
Publisher name
TRANS TECH PUBLICATIONS LTD
Place of publication
Zurich
Event location
Svratka
Event date
May 11, 2015
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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