Tagged Composites Mechanical Properties Investigation and Correlation with Fractographic Examination

Abstract

The mechanical properties of smart composites with embedded ferromagnetic tagging were examined. Flexure and tension tests were performed per ASTM standards. Weakening of the fiber/matrix interface resulting in a reduced interfacial shear strength, and reduced mechanical properties due to magnetite tagging powders was initially observed. Macroscopic and microscopic observations (fiber pull-out length, matrix adhesion remains on the fiber surface, etc.) were corroborated with the observed mechanical properties. An improved tagging system, using dried lignosite powder, gave much better mechanical properties, and indicated that adequate materials and process control can produce good tagged GFRP composites.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1997
Accession Number
ADA531036

Entities

People

  • Jerone Gagliano
  • John Voyles
  • Justin Berman
  • Robert Quattrone
  • Victor Giurgiutiu

Organizations

  • Construction Engineering Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Adhesion
  • Composite Materials
  • Electron Microscopes
  • Engineering
  • Fibers
  • Glass Fibers
  • Materials
  • Mechanical Engineering
  • Mechanical Properties
  • Scanning Electron Microscopes
  • Shear Strength
  • Shear Stresses
  • South Carolina
  • Strain Gages
  • Stresses
  • Tensile Strength
  • Test Fixtures

Fields of Study

  • Materials science

Readers

  • Geospatial Intelligence and Artificial Intelligence Analytics
  • Mathematics or Statistics
  • Reinforced Composite Materials