COMPARISON OF HOMOGENIZATION APPROACHES USED FOR IDENTIFICATION OF MATERIAL PARAMETERS OF UNIDIRECTIONAL COMPOSITE
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F17%3A43933032" target="_blank" >RIV/49777513:23520/17:43933032 - isvavai.cz</a>
Result on the web
<a href="http://mit.imt.si/Revija/izvodi/mit173/srbova.pdf" target="_blank" >http://mit.imt.si/Revija/izvodi/mit173/srbova.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.17222/mit.2015.177" target="_blank" >10.17222/mit.2015.177</a>
Alternative languages
Result language
angličtina
Original language name
COMPARISON OF HOMOGENIZATION APPROACHES USED FOR IDENTIFICATION OF MATERIAL PARAMETERS OF UNIDIRECTIONAL COMPOSITE
Original language description
The paper is aimed at the identification of material parameters of constituents of unidirectional long fiber carbon/epoxy composite. Real fiber and matrix volume ratios of unidirectional fiber composites were identified from images obtained by scanning electron microscopy (SEM). Fiber and matrix areas were analyzed using Matlab and its Image processing toolbox. Determined volume ratios were used to propose geometry of a micromechanical representative volume element. An algorithm assuring irregular fiber distribution in the representative volume element cross section and periodicity in the cross section plane was used. One layer representative volume element with mesh was built in Abaqus/CAE. Experimentally obtained force-elongation dependencies for tensile tests of specimens with different fiber orientations were processed and effective moduli were determined. In the first approach material parameters of phases were identified using OptiSlang optimization software and finite element code Abaqus. Periodically constrained representative volume element was loaded according to experiments, where specimens with different fiber orientations were loaded by tensile force. In the second approach SfePy software and asymptotic homogenization is used for the numerical computation on the microscopic scale which results in homogenized material parameters that are afterwards used at the macroscopic level. The optimization function characterized sum of differences of effective moduli and difference of Poisson’s ratios of the whole composite.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)
Result continuities
Project
<a href="/en/project/LO1506" target="_blank" >LO1506: Sustainability support of the centre NTIS - New Technologies for the Information Society</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Materiali in Tehnologije
ISSN
1580-2949
e-ISSN
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Volume of the periodical
51
Issue of the periodical within the volume
3
Country of publishing house
SI - SLOVENIA
Number of pages
6
Pages from-to
373-378
UT code for WoS article
000404817900003
EID of the result in the Scopus database
2-s2.0-85020751194