Improvements in Tensile Testing of Composite Propellants

Abstract

A description is given of work which has enabled the Williams-Landel- Ferry (WLF) method of time temperature superpositioning of tensile test data to be applied to the routine assessment of experimental plastic propellant compositions. The report is in two parts. The first part deals with experimental improvements which have recently been made particularly with regard to the estimation of the effective gauge length; a comparison of the procedure with the American (ICRPG) standard method is included. The second part deals with the computerization of the calculations performed on tensile data. This has enabled the time required to carry out a WLF analysis to be reduced from one week to about one day.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1971
Accession Number
AD0738878

Entities

People

  • B. G. Tucker
  • R. P. Ayerst

Tags

DTIC Thesaurus Topics

  • Ammonium Perchlorate
  • Composite Propellants
  • Computer Programming
  • Computers
  • Equations
  • Glass Transition Temperature
  • High Pressure
  • Low Temperature
  • Perchlorates
  • Propellants
  • Regression Analysis
  • Rocket Engines
  • Solid Propellants
  • Standards
  • Strain Rate
  • Tensile Testing
  • Transition Temperature

Readers

  • Computer Science.
  • Mechanical Engineering/Mechanics of Materials.
  • Theoretical Analysis.