Mechanical behavior of carbon fiber/epoxy filament wound laminates exposed to hygrothermal conditioning

José Humberto S. Almeida, Samia D.B. Souza, Edson C. Botelho, Sandro C. Amico

Research output: Contribution to conferencePaperScientificpeer-review

1 Citation (Scopus)

Abstract

This work aims to evaluate the effect of hygrothermal conditioning on the tensile, in-plane shear and viscoelastic properties of carbon fiber/epoxy laminates (fiber volume fraction ≈ 70%). The flat unidirectional laminates were manufactured by filament winding process using a KUKA robot and the composites were cured under hot compression molding. The laminates were later exposed to hygrothermal conditioning. All composite samples were tested before and after environmental conditioning in a hygrothermal chamber. Elastic and strength tensile properties reduced for aged specimens, e.g. [0]4 sample presented a reduction of 18% in tensile strength and 8% in elastic modulus. Shear strength and modulus followed the same trend, and shear modulus reduced in about 38%. Tensile and shear post-test specimens presented accepted failure modes, since for instance, shear specimens failed at the gage section with delaminations.

Original languageEnglish
Publication statusPublished - 1 Jan 2015
MoE publication typeNot Eligible
EventInternational Conference on Composite Materials - Copenhagen, Denmark
Duration: 19 Jul 201524 Jul 2015
Conference number: 20

Conference

ConferenceInternational Conference on Composite Materials
Abbreviated titleICCM
Country/TerritoryDenmark
CityCopenhagen
Period19/07/201524/07/2015

Keywords

  • Advanced composites
  • Environmental effect
  • Filament winding
  • Mechanical performance

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