Scale effect on unnotched and open-hole cross-ply glass fiber/epoxy non-crimp fabric (NCF) composites under quasi-static tensile loading

Ataş A., İnal O.

Mechanics of Advanced Materials and Structures, 2023 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Publication Date: 2023
  • Doi Number: 10.1080/15376494.2023.2256335
  • Journal Name: Mechanics of Advanced Materials and Structures
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, DIALNET, Civil Engineering Abstracts
  • Keywords: failure mode, glass fiber/epoxy composites, non-crimp fabric, scale effect, unnotched and open hole tensile strength
  • Istanbul Technical University Affiliated: No


This study explores the effect of size scaling and stacking sequence on the quasi-static tensile behavior of (Formula presented.) sublaminate-level and (Formula presented.) ply-level scaled glass/epoxy laminates. Test results showed that the unnotched tensile strengths of both scaled specimens were comparable for a given scaling factor, even though ply-level scaled specimens suffered extensive delamination between (Formula presented.) and (Formula presented.) ply blocks. In contrast, the open hole tensile (OHT) strength was reduced with increased scale in sublaminate-level and was marginally increased in ply-level scaled specimens. Similar to unnotched specimens, ply-level scaled OHT specimens exhibited extensive delamination.