Homogenization of a Plain Weave Textile Composite

Johnson, Eric R.; Chretien, N.; Rastogi, Naveen

doi:10.2514/6.2002-1615

Cited by 3 publications

References 1 publication

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Homogenized tensile and bending properties of plain weave single‐Ply E‐glass/epoxy

Karakaya

Soykasap

2012

Polymer Composites

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This study empirically, numerically, and analytically analyzes the tensile and bending behavior of a plain weave single‐ply E‐glass/epoxy composite. In the empirical part of the study, tensile and simple bending experiments are conducted. Finite element method is used in the modeling part of the numerical study. Transverse and longitudinal fibers of the plain woven composite are modeled in one and three dimensions by using the ABAQUS software. Finally, mixture ratio approach and composite beam approach are considered in the analytical part of the study. Elastic modulus, Poisson's ratio, bending stiffness, and critical bending radius are obtained experimentally and are compared with the results of the finite element analyses and the results of the analytical study where applicable. The results closest to the empirically obtained ones are obtained by three‐dimensional (3D) finite elements analysis. Moreover, the mechanical characteristics obtained by the composite beam approach used in the analytical study are also very close to the values obtained by 3D finite elements analysis. POLYM. COMPOS., 2012. © 2012 Society of Plastics Engineers

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Homogenized tensile and bending properties of plain weave single‐Ply E‐glass/epoxy

Karakaya

Soykasap

2012

Polymer Composites

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Influence of Number of Plies on Flexural Behavior of Ultra-Thin Woven Composites

Wanasinghe,

Mallikarachchi

2024

2024 Moratuwa Engineering Research Conference (MERCon)

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Micromechanical Models for Bending Behavior of Woven Composites

Soykasap

2006

Journal of Spacecraft and Rockets

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Thin woven composites have been popular for space structures due to the symmetrical and balanced properties. Although in-plane properties of these materials can be calculated accurately using the classical lamination theory (CLT), the corresponding bending properties lack any accuracy for one or two-ply woven laminates. Experiments on thin laminates made from woven composites disagree with the estimates of bending stiffness and strains using CLT. Such estimates can result in errors of up to 200% in the maximum bending strains or stresses, and up to 400% in the bending stiffnesses. This is because CLT assumes that the fibers and the matrix are uniformly distributed in each lamina, and relies on this uniformity in the integration of the transformed laminate stiffnesses over the thickness of the laminate. However, a thin laminate made from fabrics in fact consists of bundles of fibers that are typically much thinner than the overall thickness of the laminate; these bundles are not homogenous through the thickness. This paper presents micromechanical models for bending behavior of woven composites considering the fiber bundles and the matrix and their interactions. Finite element models are developed to estimate the bending properties of plain weave composites. The results are compared to experimental data, showing very good agreement particularly for a lamina.

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Homogenization of a Plain Weave Textile Composite

Cited by 3 publications

References 1 publication

Homogenized tensile and bending properties of plain weave single‐Ply E‐glass/epoxy

Homogenized tensile and bending properties of plain weave single‐Ply E‐glass/epoxy

Influence of Number of Plies on Flexural Behavior of Ultra-Thin Woven Composites

Micromechanical Models for Bending Behavior of Woven Composites

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