Experimental Verification of a Microbuckling Model for the Axial Compressive Failure of High Performance Polymer Fibers.

Abstract

For failure initiated by elastic microbuckling of polymer chains or fibrils, the maximum fiber strength is predicted to be equal to the minimum longitudinal shear modulus of the fiber. An excellent linear correlation between measured strengths and torsion moduli was obtained for four liquid crystalline polymer fibers and high modulus graphite fibers. A correlation shows that measured strengths are 30% of the corresponding torsion moduli, the theoretical strengths, for all these fibers. Keywords: Compressive strength, Buckling, High modulus organic fibers, Torsional moduli, Kink bands, Composites.

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Document Details

Document Type
Technical Report
Publication Date
Jan 05, 1987
Accession Number
ADA177468

Entities

People

  • Richard J. Farris
  • Roger S. Porter
  • Steven J. Deteresa

Organizations

  • University of Massachusetts Amherst

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Biomedical And Dental Materials
  • Carbon Fibers
  • Composite Materials
  • Compressive Strength
  • Fibers
  • Graphitic Materials
  • Materials
  • Materials Laboratories
  • Materials Science
  • Military Research
  • Orientation (Direction)
  • Residual Stress
  • Shear Modulus
  • Tensile Modulus
  • Tensile Properties
  • Transverse

Readers

  • Reinforced Composite Materials