Identification of the Material Parameters of a Unidirectional Fiber Composite Using a Micromodel

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F12%3A43915804" target="_blank" >RIV/49777513:23520/12:43915804 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Identification of the Material Parameters of a Unidirectional Fiber Composite Using a Micromodel

Popis výsledku v původním jazyce

The paper is focused on the identification of material parameters of substituents of unidirectional carbon-epoxy longfiber reinforced composite. Simple tensile tests using thin coupons with various fiber orientations were performed and force-displacementdiagrams were obtained. A model of unit cell is created in MSC.Marc. Fibers are considered as non-linear elastic transversely isotropic material and matrix is considered as elasto-plastic isotropic material. The unit cell is loaded by uniaxial stress upto the same level of loadings as the experimental samples. Sum of squared differences of displacements between the numerically and experimentally obtained force-displacement diagrams is minimized within an identification process. Parameters of linear relation between the Young's modulus of fibers and strain in fiber axis direction, and three shape coefficients of matrix work-hardening function are searched. The identification process is performed using MSC.Marc, OptiSlang optimization s

Název v anglickém jazyce

Identification of the Material Parameters of a Unidirectional Fiber Composite Using a Micromodel

Popis výsledku anglicky

The paper is focused on the identification of material parameters of substituents of unidirectional carbon-epoxy longfiber reinforced composite. Simple tensile tests using thin coupons with various fiber orientations were performed and force-displacementdiagrams were obtained. A model of unit cell is created in MSC.Marc. Fibers are considered as non-linear elastic transversely isotropic material and matrix is considered as elasto-plastic isotropic material. The unit cell is loaded by uniaxial stress upto the same level of loadings as the experimental samples. Sum of squared differences of displacements between the numerically and experimentally obtained force-displacement diagrams is minimized within an identification process. Parameters of linear relation between the Young's modulus of fibers and strain in fiber axis direction, and three shape coefficients of matrix work-hardening function are searched. The identification process is performed using MSC.Marc, OptiSlang optimization s

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JI - Kompositní materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Materiali in Tehnologije

ISSN

1580-2949

e-ISSN

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Svazek periodika

46

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

SI - Slovinská republika

Počet stran výsledku

4

Strana od-do

431-434

Kód UT WoS článku

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EID výsledku v databázi Scopus

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