Hyperplastic material model with damage for woven composites

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F19%3A43956080" target="_blank" >RIV/49777513:23520/19:43956080 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.compscitech.2019.107790" target="_blank" >https://doi.org/10.1016/j.compscitech.2019.107790</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.compscitech.2019.107790" target="_blank" >10.1016/j.compscitech.2019.107790</a>

Result language
angličtina
Original language name
Hyperplastic material model with damage for woven composites
Original language description
A hyperplastic material model with damage was developed in order to describe the non-linear mechanical behaviour of woven composites. The proposed model is based on thermodynamic principles and considers the additive decomposition of logarithmic strain in accordance with assumed finite strain theory. The damage is modelled using the proposed degradation functions dependent on the relevant elastic strains. This model was implemented into the commercial FEM software Abaqus using UMAT and VUMAT subroutines. Experimental cyclic tensile and compressive static tests were performed on selected woven composites. Mathematical optimization is used for identification of material parameters of the presented model. The capability of the material model was verified by means of experiments on the specimens using geometry that provides a highly complex combination of plasticity and damage states during loading. Strain distributions were experimentally analysed using digital image correlation and the results compared with results from numerical simulations.
Czech name
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Czech description
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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
20302 - Applied mechanics

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)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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