Deformation, Strength, and Failure Modes of Laminated Conventional and Hybrid Polymer-Matrix Composites Loaded in the Thickness Direction

Abstract

Thickness properties of laminated composites have not been as thoroughly investigated as in plane properties. Previous work by this investigator indicated that these properties, both elastic and strength, differ significantly from the transverse properties of unidirectional composites of the same materials system although the thickness direction is transverse to each play in the laminate. In this investigation the thickness properties of both single system, and hybrid laminates are studied; namely, graphite-epoxy, kevlar-epoxy, glass-epoxy, graphite-epoxy/kevlar-epoxy, graphite-epoxy/glass-epoxy. However, knowledge of the in-plane properties of the laminates was also obtained since this was essential for the analysis and are also reported. Failure modes of the hybrid composites are characterized and discussed. Composites, Laminated composites, Laminates, Graphite-epoxy, Kelvar-epoxy, Glass-epoxy, Hybrid composites.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1994
Accession Number
ADA281587

Entities

People

  • A. A. Fahmy

Organizations

  • North Carolina State University

Tags

DTIC Thesaurus Topics

  • Biocomposites
  • Composite Materials
  • Delamination
  • Elastic Properties
  • Epoxy Laminates
  • Failure Mode And Effect Analysis
  • Fibers
  • Finite Element Analysis
  • Laminates
  • Materials
  • Materials Science
  • Orientation (Direction)
  • Polymer Matrix Composites
  • Strain Gages
  • Thickness
  • Transverse
  • Unidirectional

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials