Comparison of Woven and Stitched Out-of-Autoclave E-glass/Epoxy Composites Subjected to Quasi-static and Cyclic Tensile Loads

Tensile quasi-static and fatigue behaviors of out-of-autoclave, quasi-isotropic, E-glass/epoxy composites with woven and stitched fiber architectures are compared. Some specimens were cyclically loaded to failure, while others were tested for residual modulus and ultimate strength. Both laminates survived 10<jats:sup>7/jats:sup cycles at a maximum stress of 94.8 MPa but failed prior to 10<jats:sup>7/jats:sup cycles at a maximum stress greater than or equal to 124.1 MPa. For the stress-lifetime diagram and residual strength, the woven laminate had superior properties below 10<jats:sup>4/jats:sup cycles and the stitched laminate had superior properties above 10<jats:sup>5/jats:sup cycles. While intralaminar crack density was higher in the stitched laminate, the woven laminate demonstrated a higher percentage of delaminated area.

Rudy T Haluza et al, Comparison of woven and stitched out-of-autoclave E-glass/epoxy composites subjected to quasi-static and cyclic tensile loads, Journal of Reinforced Plastics and Composites (, ) pp. . Copyright © 2020. DOI: 10.1177/0731684420959452. Users who receive access to an article through a repository are reminded that the article is protected by copyright and reuse is restricted to non-commercial and no derivative uses. Users may also download and save a local copy of an article accessed in an institutional repository for the user's personal reference. For permission to reuse an article, please follow our Process for Requesting Permission.

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Work Title Comparison of Woven and Stitched Out-of-Autoclave E-glass/Epoxy Composites Subjected to Quasi-static and Cyclic Tensile Loads
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Open Access
Creators
  1. Rudy T Haluza
  2. Charles E Bakis
  3. Kevin L Koudela
License In Copyright (Rights Reserved)
Work Type Article
Publisher
  1. SAGE Publications
Publication Date September 20, 2020
Publisher Identifier (DOI)
  1. 10.1177/0731684420959452
Source
  1. Journal of Reinforced Plastics and Composites
Deposited May 27, 2022

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    Description
    • <jats:p> Tensile quasi-static and fatigue behaviors of out-of-autoclave, quasi-isotropic, E-glass/epoxy composites with woven and stitched fiber architectures are compared. Some specimens were cyclically loaded to failure, while others were tested for residual modulus and ultimate strength. Both laminates survived 10<jats:sup>7</jats:sup> cycles at a maximum stress of 94.8 MPa but failed prior to 10<jats:sup>7</jats:sup> cycles at a maximum stress greater than or equal to 124.1 MPa. For the stress-lifetime diagram and residual strength, the woven laminate had superior properties below 10<jats:sup>4</jats:sup> cycles and the stitched laminate had superior properties above 10<jats:sup>5</jats:sup> cycles. While intralaminar crack density was higher in the stitched laminate, the woven laminate demonstrated a higher percentage of delaminated area. </jats:p>
    • Tensile quasi-static and fatigue behaviors of out-of-autoclave, quasi-isotropic, E-glass/epoxy composites with woven and stitched fiber architectures are compared. Some specimens were cyclically loaded to failure, while others were tested for residual modulus and ultimate strength. Both laminates survived 10<jats:sup>7</jats:sup> cycles at a maximum stress of 94.8 MPa but failed prior to 10<jats:sup>7</jats:sup> cycles at a maximum stress greater than or equal to 124.1 MPa. For the stress-lifetime diagram and residual strength, the woven laminate had superior properties below 10<jats:sup>4</jats:sup> cycles and the stitched laminate had superior properties above 10<jats:sup>5</jats:sup> cycles. While intralaminar crack density was higher in the stitched laminate, the woven laminate demonstrated a higher percentage of delaminated area.
  • Updated