Studies of Elastic Constants of Oriented Poly (Ethylene Terephthalate) Films Using Brillouin Scattering.

Abstract

Brillouin scattering is used to study the elastic behavior of oriented poly(ethylene terephthalate) films. The elastic constants C11, C13, C33 and C44 are determined by measurements of the quasilongitudinal and quasitransverse hypersonic velocities at different angles in the film. The total orientation parameter is calculated for the three draw ratios from the Brillouin hypersonic velocities and are found to be similar to the orientational parameter in the amorphous phase obtained with a different technique. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 21, 1981
Accession Number
ADA100313

Entities

People

  • C. H. Wang
  • David B. Cavanaugh

Organizations

  • University of Utah

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Alkenes
  • Brillouin Scattering
  • Chemical Engineering
  • Chemistry
  • Dacron
  • Ethylenes
  • Films
  • Frequency Shift
  • Hypersonic Velocity
  • Materials
  • Materials Laboratories
  • Materials Science
  • Measurement
  • Military Research
  • Physics
  • Polymeric Films
  • Waves

Fields of Study

  • Materials science

Readers

  • Electromagnetic Wave Scattering and Antenna Radiation Engineering
  • Materials Science and Engineering.
  • Polymer Science and Engineering.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Flow