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

Result code in 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>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

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

Original language description

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

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JI - Composite materials

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

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

Publication year

2012

Confidentiality

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

Name of the periodical

Materiali in Tehnologije

ISSN

1580-2949

e-ISSN

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Volume of the periodical

46

Issue of the periodical within the volume

5

Country of publishing house

SI - SLOVENIA

Number of pages

4

Pages from-to

431-434

UT code for WoS article

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EID of the result in the Scopus database

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