Influence of fiber spatial distribution in unidirectional composite cross-section on homogenized elastic parameters

被引：7
|
作者：
Zemcik, H. [1 ]
Kroupa, T. [1 ]
Zemcik, R. [1 ]
Bures, L. [1 ]
机构：
[1] Univ West Bohemia, Fac Appl Sci, NTIS, Tech 8, Plzen 30100, Czech Republic
来源：
COMPOSITE STRUCTURES | 2018年 / 203卷
关键词：
Carbon fiber composite material; Effective anisotropic elastic parameters; Degree of irregularity; Periodic microstructure unit cell; Finite element analysis micromodel; REINFORCED COMPOSITE;
D O I：
10.1016/j.compstruct.2018.06.083
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
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.
引用
收藏
页码：927 / 933
页数：7
相关论文
共 50 条
  • [31] ELASTIC BEHAVIOR OF THIN ELASTIC SPRINGS OF CONSTANT CROSS-SECTION
    KUTSCHERA, W
    SIEMENS FORSCHUNGS-UND ENTWICKLUNGSBERICHTE-SIEMENS RESEARCH AND DEVELOPMENT REPORTS, 1978, 7 (04): : 214 - 218
  • [32] ON THE DISTRIBUTION OF THE FLUCTUATING REACTION CROSS-SECTION
    WITALA, H
    JARCZYK, L
    STRZALKOWSKI, A
    LANG, J
    MULLER, R
    ACTA PHYSICA POLONICA B, 1983, 14 (07): : 555 - 560
  • [33] DISTRIBUTION OF PARAMETERS IN THE CROSS-SECTION OF JET SPREADING IN A TRANSVERSE AIR-FLOW
    GOLUBEV, VA
    IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII AVIATSIONAYA TEKHNIKA, 1988, (02): : 91 - 94
  • [34] MYOCARDIAL FIBER CROSS-SECTION AND T WAVE
    ABEL, H
    LOEPER, H
    ZEITSCHRIFT FUR KARDIOLOGIE, 1973, 62 (04): : 380 - 387
  • [35] Development of a trilobal cross-section polynosic fiber
    Inatomi, S.
    Chemical Fibers International, 1999, 49 (02):
  • [36] Influence of orthotropy parameters on the stress state of hollow cylinders with elliptic cross-section
    Ya. M. Grigorenko
    L. S. Rozhok
    International Applied Mechanics, 2007, 43
  • [37] FIBER OPTIC GUIDES OF NONCIRCULAR CROSS-SECTION
    EYGES, L
    APPLIED OPTICS, 1978, 17 (11): : 1673 - 1674
  • [38] Influence of orthotropy parameters on the stress state of hollow cylinders with elliptic cross-section
    Grigorenko, Ya. M.
    Rozhok, L. S.
    INTERNATIONAL APPLIED MECHANICS, 2007, 43 (12) : 1372 - 1379
  • [39] BILINEAR FORMULATION FOR SPATIAL CROSS-SECTION AVERAGING
    KOMATA, M
    NICHOLSON, RB
    PAGE, EM
    NUCLEAR SCIENCE AND ENGINEERING, 1973, 50 (03) : 220 - 228
  • [40] Toward better understanding of the effect of fiber distribution on effective elastic properties of unidirectional composite yarns
    Mohammadi, M. Shah
    Komeili, M.
    Phillion, A. B.
    Milani, A. S.
    COMPUTERS & STRUCTURES, 2016, 163 : 29 - 40
12345