# Anisotropic elastic properties in glass, aramid, and carbon fibers

https://mdr.nims.go.jp/datasets/e49c966a-241e-4a85-ac69-dbdc55a9d11e

## File

- [1-s2.0-S2238785426002267-main.pdf](https://mdr.nims.go.jp/filesets/62be1d97-7b0b-4f1a-8ded-9a5deead10a1/download) ([Detail](https://mdr.nims.go.jp/filesets/62be1d97-7b0b-4f1a-8ded-9a5deead10a1.md))

## Id

e49c966a-241e-4a85-ac69-dbdc55a9d11e

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-03T03:18:13.060161Z

## Updated at

2026-02-16T09:09:32.565646Z

## Published at

2026-02-04T04:58:36.304539Z

## Doi



## First published url

https://doi.org/10.1016/j.jmrt.2026.01.225

## Date published

2026-01-31

## Recorded date published

2026-3

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Anisotropic elastic properties in glass, aramid, and carbon fibers
  title_type: original
  lang: en

## Description

- description: 'Fibers used in fiber-reinforced polymer matrix composites (FRPs) exhibit
    significant anisotropy between radial and axial directions. In this study, six
    epoxy composites containing different fiber types—E-glass, aramid, and carbon
    fibers—were prepared. Nanoindentation tests were conducted on three orthogonal
    cross-sections of each fiber. The Vlassak–Nix (VN) model, based on theoretical
    implicit equations derived from anisotropic elasticity theory, was applied to
    extract five independent elastic constants: c11, c12, c13, c33, and c44. The anisotropic
    index and its correlation with tensile modulus and extrapolated indentation modulus
    were systematically evaluated. Results revealed that fibers with higher stiffness
    exhibited greater anisotropy. These findings highlight the importance of considering
    both anisotropy and stiffness in fiber selection for composites and additive manufacturing
    applications.'
  description_type: abstract
  lang: und

## Creator

- name: Kimiyoshi Naito
  role: author
  orcid: https://orcid.org/0000-0002-3334-4876
- name: Chiemi Nagai
  role: author
- name: Keiichi Shirasu
  role: author

## Contact agent



## Publisher

organization: Elsevier BV

## Managing organization



## Keyword

- subject: Fiber
  schema: not_defined
- subject: Polymer-matrix composites (PMCs)
  schema: not_defined
- subject: Nanoindentation
  schema: not_defined
- subject: Anisotropy
  schema: not_defined
- subject: Elastic constants
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Journal of Materials Research and Technology
  issn: '22140697'
  volume: '41'

## Conference



## Related item



## Funding

- identifier: JPMJKP 24W1
  funder_name: Japan Science and Technology Agency

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



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## Custom property



## Fileset

- id: 62be1d97-7b0b-4f1a-8ded-9a5deead10a1
  filename: 1-s2.0-S2238785426002267-main.pdf
  content_type: application/pdf
  size: 2710597
  md5: e8619d9c6e589553d1221b9d9f891ae0

## Thumbnail

fileset_id: 62be1d97-7b0b-4f1a-8ded-9a5deead10a1
filename: 1-s2.0-S2238785426002267-main.pdf