EXPERIMENTAL DETERMINATION OF MECHANICAL RESPONSE OF SOLID ROCKET PROPELLANT UNDER HIGH STRAIN RATE AND LOW TEMPERATURE

Abstract

Described are the results of an experimental investigation of the mechanical properties of two simulated solid rocket propellants. The 'green' propellant is salt-filled polyurethane; the 'gray' propellant is Adiprene L-100, filled with aluminum powder, aluminum sulphate, and castor oil. For the green propellant, the U. T. S. varied from 170 psi at room temperature to about 6,000 psi at -200C, while corresponding values for the gray were 250 psi and 11,000 psi, respectively. The impulsive fracture strength of the green propellant was found to be about 16,000 psi and the shock attenuation at this stress level is about 5,000 psi/in. An approximate value of 24,000 psi for the impulsive fracture strength of the gray was obtained by indirect menas, along with a shock attenuation of 1,500 psi/in. The dynamic Poisson's ratio for the green propellant was found to be greater than 0.5, while for the gray, it was less than 0.5.

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Document Details

Document Type
Technical Report
Publication Date
Jul 15, 1964
Accession Number
AD0603871

Entities

People

  • John S. Rinehart
  • Richard S. Culver

Organizations

  • Colorado School of Mines

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Equations
  • Explosive Charges
  • Explosives
  • Films
  • Materials Testing
  • Measurement
  • Mechanical Properties
  • Piezoelectric Crystals
  • Rocket Propellants
  • Shock Waves
  • Solid Rocket Propellants
  • Strain Gages
  • Strain Rate
  • Stress Waves
  • Stresses
  • Tensile Strength
  • Tensile Testing

Fields of Study

  • Physics

Readers

  • Aerospace Propulsion Engineering.
  • Combustion Dynamics and Shock Wave Physics.
  • Mechanical Engineering/Mechanics of Materials.