Mechanical Properties of EPON 826/DEA Epoxy

Abstract

Polymers are becoming increasingly used in aerospace structural applications, where they experience complex, non-static loads. Correspondingly, the mechanical properties at high strain rates are of increasing importance in these applications. This paper investigates the compressive properties of Epon 826 epoxy resin cured with diethynolamine (DEA) across strain rates from 10(-3) to 10(4) s(-1). Specimens were tested using an Instron mechanical testing machine for static loading, traditional split Hopkinson pressure bars (SHPBs) for high strain rates, and a miniaturized SHPB for ultra-high strain rates. Additionally, the material was tested using dynamic mechanical analysis to determine the effects of time and temperature equivalences on the strain rate behavior of the samples. The experimental data is used to fit the Mulliken-Boyce model, modified for one-dimension, which is able to capture the compressive mechanical properties over a range of strain rates.

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Document Details

Document Type
Technical Report
Publication Date
Jul 26, 2008
Accession Number
ADA485659

Entities

People

  • Clive R. Siviour
  • J L Jordan
  • Jason R. Foley

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Autonomy
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Alkenes
  • Biomedical And Dental Materials
  • Epoxy Resins
  • Materials Laboratories
  • Materials Processing
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Modulus Of Elasticity
  • Plastics
  • Polymeric Films
  • Resins
  • Stress Strain Relations
  • Three Dimensional

Fields of Study

  • Materials science

Readers

  • Computational Modeling and Simulation
  • Mechanical Engineering/Mechanics of Materials.
  • Surface Coatings Technology.

Technology Areas

  • Space