The Effect of Physical Aging on the Creep Response of a Thermoplastic Composite

Abstract

The effect of thermoreversible physical aging on the linear viscoelastic creep properties of a thermoplastic composite was investigated. Radel X/IM7, an amorphous composite material considered for use in the next generation high speed transport aircraft, was studied. The operating environment for the aircraft material will be near 188 deg C (370 deg F) with a service life in excess of 60,000 hours at temperature. Accurate predictions of the viscoelastic properties of the material are essential to insure that design strength and stiffness requirements are met for the entire service life. The effect of physical aging on the creep response was studied using momentary tensile creep tests conducted at increasing aging times following a rapid quench from above the glass transition temperature (Tg) to a sub-Tg aging temperature.

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Document Details

Document Type
Technical Report
Publication Date
Jun 26, 1991
Accession Number
ADA243600

Entities

People

  • Robert L. Hastie Jr.

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space

DTIC Thesaurus Topics

  • Composite Materials
  • Epoxy Composites
  • Glass Transition Temperature
  • Laminates
  • Materials
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Measurement
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Stress Strain Relations
  • Stresses
  • Tensile Strength
  • Thermoplastic Composites
  • Two Dimensional

Fields of Study

  • Materials science

Readers

  • Polymer Science and Engineering.
  • Structural Dynamics.