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Hana Zemčík and Tomáš Kroupa and Robert Zemčík and Lukáš Bureš : Influence of fiber spatial distribution in unidirectional composite cross-section on homogenized elastic parameters . Composite structures, 203, p. 927-933, 2018.

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Abstract

The aim of this work is to analyze the influence of spatial distribution of fibers in unidirectional longfiber composite material on the mechanical behavior of a lamina using finite element models of unit cells (micromodels). The dependencies of effective elastic parameters of a lamina on degree of irregularity of spatial fiber distribution are investigated, proved and described. Degree of irregularity of real composite material cross-sections and the unit cells is described by a proposed parameter. This parameter expresses deviation of a given composite cross-section (2D geometry) from idealized regular hexagonal fiber distribution. Effective elastic parameters of 200 micromodels with geometries having different degrees of irregularity are calculated. A dependence between the parameter evaluating the cross-section irregularity and the spread (interval between extreme values) of the resulting effective parameters is obtained.

Detail of publication

Title: Influence of fiber spatial distribution in unidirectional composite cross-section on homogenized elastic parameters
Author: Hana Zemčík ; Tomáš Kroupa ; Robert Zemčík ; Lukáš Bureš
Language: English
Year: 2018
Type of publication: Papers in journals
Title of journal or book: Composite structures
Edition: 203
Page: 927 - 933
DOI: 10.1016/j.compstruct.2018.06.083
ISSN: 0263-8223
/ 2019-11-20 17:35:54 /

Keywords

Carbon fiber composite material, Effective anisotropic elastic parameters, Degree of irregularity, Periodic microstructure unit cell, Finite element analysis, Micromodel

BibTeX

@ARTICLE{HanaZemcik_2018_Influenceoffiber,
 author = {Hana Zem\v{c}\'{i}k and Tom\'{a}\v{s} Kroupa and Robert Zem\v{c}\'{i}k and Luk\'{a}\v{s} Bure\v{s}},
 title = {Influence of fiber spatial distribution in unidirectional composite cross-section on homogenized elastic parameters},
 year = {2018},
 journal = {Composite structures},
 pages = {927-933},
 ISSN = {0263-8223},
 doi = {10.1016/j.compstruct.2018.06.083},
 url = {http://www.kky.zcu.cz/en/publications/HanaZemcik_2018_Influenceoffiber},
}