Interlaminar Fracture of Composites.

Abstract

Fracture mechanics has been found to be a useful tool for understanding composite delamination. Analyses for calculating strain energy release rates associated with delamination growth have been developed. These analyses successfully characterized delamination onset and growth for particular sources of delamination. Low velocity impact has been found to be the most severe source of composite delamination. A variety of test methods for measuring interlaminar fracture toughness are being developed to identify new composite materials with enhanced delamination resistance. (AN)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1984
Accession Number
ADA305050

Entities

People

  • T. K. O'brien

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Composite Materials
  • Delamination
  • Epoxy Laminates
  • Failure Mode And Effect Analysis
  • Fiber Reinforced Polymers
  • Finite Element Analysis
  • Fracture (Mechanics)
  • Graphitic Materials
  • Laminates
  • Materials Laboratories
  • Materials Testing
  • Mechanics
  • Micromechanics
  • Polymer Matrix Composites
  • Reinforced Plastics
  • Test Methods

Fields of Study

  • Materials science

Readers

  • Structural Health Monitoring of Composite Structures.