Determination of Physical Parameters for Polymeric Materials Using Ultrasonics Techniques. Longitudinal and Shear Measurements on Commercially Available Plastics

Abstract

The background theory used in understanding longitudinal and shear velocities in isotropic and anisotropic materials is summarized. The relation of these velocities to mechanical property evaluation is presented. The derived expressions are applied. An ultrasonics apparatus was used to measure longitudinal and shear velocities in a variety of commercially available semicrystalline polymers. Measured results agree well with other published values. The use of this ultrasonic technique for polymer characterization is discussed.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1976
Accession Number
ADA038075

Entities

People

  • D. R. Wiff
  • David E. Wright

Organizations

  • University of Dayton

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Biomedical And Dental Materials
  • Elastic Properties
  • Elastic Waves
  • Materials
  • Materials Laboratories
  • Measurement
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Plastics
  • Polymeric Films
  • Resins
  • Secondary Waves
  • Shear Modulus
  • Ultrasonics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Reinforced Composite Materials