Burning Rate Measurement of Thin Sheets of Double Base Propellant (HEN-12).

Abstract

The special problems associated with determining strand burning rates of very thin (0.040 inches) sheets of an NC/NG double base propellant (specifically HEN-12) were assessed and the accuracies of several strand burning experiments were evaluated. Strand burning experiments were carried out in several media over a range of temperatures (20 to 140 F) and pressures (500 to 1500 psi): nonflowing N2, N2 flowing parallel to flame, water, and oil. Except for oil, all media produced consistent burning rate data. However, burning in nonflowing N2 minimized the heat loss effects. High speed photographs and extinguished specimens showed the extent that the media retarded the burning rate of the very thin strands. Error analyses indicated that the strand burning method of using nonflowing N2 and conventional breakwire timing of the burning period can be refined to produce errors of less than 0.5% and that the largest source of error is the determination of breakwire position. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1975
Accession Number
ADA059869

Entities

People

  • Chris R. Felsheim
  • Leonard H. Caveny
  • Martin Summerfield

Organizations

  • Princeton University

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Emissions
  • Burning Rate
  • Combustion
  • Combustion Products
  • Composite Propellants
  • Data Reduction
  • Double Base Propellants
  • Error Analysis
  • Ignition
  • Materials Laboratories
  • Materials Processing
  • Measurement
  • Pressure Transducers
  • Production Control
  • Propellants
  • Solid Propellants

Readers

  • Metallurgy
  • Rocket Propulsion.