Effect of micro in-plane fiber waviness on compressive properties of unidirectional fabric composites

Bo Wang, Nobuhide Uda, Kousei Ono, Hiroto Nagai

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

In this paper, a combination of experimentation and analysis is used to study the effect of micro in-plane fiber waviness on the compressive properties of unidirectional fabric composites. The experimental part includes a measurement of the micro in-plane fiber waviness in two types of unidirectional fabrics, manufacturing composites with each unidirectional fabric via VaRTM process and tests for establishing the compressive modulus and strengths of the composites. The compressive strengths were confirmed to be affected by the micro in-plane fiber waviness, but the compressive modulus was not. Furthermore, a two-dimensional numerical model is proposed to explain our experimental results. The numerical results indicate that the tensile stress (owing to the micro in-plane fiber waviness) and compressive stress along the weft and warp directions, respectively, of the composite lead to reductions in the compressive strength.

Original languageEnglish
Pages (from-to)2065-2074
Number of pages10
JournalJournal of Composite Materials
Volume52
Issue number15
DOIs
Publication statusPublished - Jun 1 2018

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Mechanics of Materials
  • Mechanical Engineering
  • Materials Chemistry

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