Improved nonlinear stress-strain relation for carbon?epoxy composites and identification of material parameters

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F11%3A43898343" target="_blank" >RIV/49777513:23520/11:43898343 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1177/0021998310380285" target="_blank" >http://dx.doi.org/10.1177/0021998310380285</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1177/0021998310380285" target="_blank" >10.1177/0021998310380285</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Improved nonlinear stress-strain relation for carbon?epoxy composites and identification of material parameters

Popis výsledku v původním jazyce

This study focuses on the comparison of selected nonlinear stress?strain relations for unidirectional continuous fiber carbon?epoxy composites and the identification of their parameters under tensile loading. Simple tensile tests of thin strips with various fiber orientations are performed. One linear relation, two types of nonlinear stress?strain relations taken from literature, and one improved relation are analyzed and used within the identification process. All the relationships are deduced from polynomial expansion of complementary energy density. The process, using a combination of the mathematical optimization method and finite element analysis, is described with the necessary details. Failure analysis for the determination of the first failureusing Puck?s action plane concept is also performed. The tensile and shear strengths are investigated. The comparison of the results obtained from the identified material parameters with the results obtained using the material parameters

Název v anglickém jazyce

Improved nonlinear stress-strain relation for carbon?epoxy composites and identification of material parameters

Popis výsledku anglicky

This study focuses on the comparison of selected nonlinear stress?strain relations for unidirectional continuous fiber carbon?epoxy composites and the identification of their parameters under tensile loading. Simple tensile tests of thin strips with various fiber orientations are performed. One linear relation, two types of nonlinear stress?strain relations taken from literature, and one improved relation are analyzed and used within the identification process. All the relationships are deduced from polynomial expansion of complementary energy density. The process, using a combination of the mathematical optimization method and finite element analysis, is described with the necessary details. Failure analysis for the determination of the first failureusing Puck?s action plane concept is also performed. The tensile and shear strengths are investigated. The comparison of the results obtained from the identified material parameters with the results obtained using the material parameters

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

<a href="/cs/project/IAA200760611" target="_blank" >IAA200760611: Šíření vln a degradační procesy v anizotropních laminátech</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

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

Název periodika

JOURNAL OF COMPOSITE MATERIALS

ISSN

0021-9983

e-ISSN

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Svazek periodika

45

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

13

Strana od-do

1045-1057

Kód UT WoS článku

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EID výsledku v databázi Scopus

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