Comparing Mori-Tanaka Method and First-Order Homogenization Scheme in the Viscoelastic Modeling of Unidirectional Fibrous Composites

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F20%3A00342862" target="_blank" >RIV/68407700:21110/20:00342862 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.14311/APP.2020.26.0133" target="_blank" >https://doi.org/10.14311/APP.2020.26.0133</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/APP.2020.26.0133" target="_blank" >10.14311/APP.2020.26.0133</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Comparing Mori-Tanaka Method and First-Order Homogenization Scheme in the Viscoelastic Modeling of Unidirectional Fibrous Composites

Popis výsledku v původním jazyce

A comparative study of the viscous response of polymer matrix based fibrous composites predicted by the Mori-Tanaka method and finite element simulations based on the 1st order homogenization theory is presented. Aligned basalt and carbon fibers embedded into a polymeric matrix are considered to represent a quasi isotropic and transversely isotropic two-phase systems. While differences in the prediction of the macroscopic elastic response are attributed merely to the properties of the fiber phase, the viscoelastic behavior is largely affected by the selected homogenization method. A stiffer response predicted by the Mori-Tanaka method for both creep and relaxation tests is observed for both material systems and supports similar finding found in the literature. Thus suitable modifications of the original formulation of such two-point averaging schemes are needed for them to be applicable in the multi-scale modeling of generally anisotropic yarns in plane weave textile composites.

Název v anglickém jazyce

Comparing Mori-Tanaka Method and First-Order Homogenization Scheme in the Viscoelastic Modeling of Unidirectional Fibrous Composites

Popis výsledku anglicky

A comparative study of the viscous response of polymer matrix based fibrous composites predicted by the Mori-Tanaka method and finite element simulations based on the 1st order homogenization theory is presented. Aligned basalt and carbon fibers embedded into a polymeric matrix are considered to represent a quasi isotropic and transversely isotropic two-phase systems. While differences in the prediction of the macroscopic elastic response are attributed merely to the properties of the fiber phase, the viscoelastic behavior is largely affected by the selected homogenization method. A stiffer response predicted by the Mori-Tanaka method for both creep and relaxation tests is observed for both material systems and supports similar finding found in the literature. Thus suitable modifications of the original formulation of such two-point averaging schemes are needed for them to be applicable in the multi-scale modeling of generally anisotropic yarns in plane weave textile composites.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Projekt

<a href="/cs/project/GA19-15666S" target="_blank" >GA19-15666S: Časově závislé chování reaktoplastů používaných v kotevních systémech</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

NMM 2019 Nano & Macro Mechanics

ISBN

978-80-01-06720-8

ISSN

—

e-ISSN

2336-5382

Počet stran výsledku

6

Strana od-do

133-138

Název nakladatele

Czech Technical University in Prague

Místo vydání

Praha

Místo konání akce

Praha

Datum konání akce

11. 9. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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