THE MECHANISM OF EXPLOSION INITIATIONS IN THE STANDARD IMPACT SENSITIVITY TESTER

Abstract

Experimental impact sensitivity data have been obtained for normal propyl nitrate as the condensed phase with gas bodies consisting of the single component systems - Argon, Helium, Nitrogen, Freon-12; binary systems - (Helium- Oxygen), (Nitrogen-Oxygen), (Freon-12 - Oxygen); and the ternary system - (Freon-12/He - Oxygen). The experimental program has separated (for the first time) the effects of heat capacity ratio, thermal conductivity, and chemical reactivity of the gas body on the impact sensitivity. Based upon a theoretical model of initiation proposed, the impact sensitivity of n-propyl nitrate has been correlated with the thermal diffusivity of the entrapped gas body. The correlation correctly predicts that Argon, Nitrogen, and Freon-12 gas bodies require energies above 92 Kg-cm for initiation to occur. The effect of chemical reactivity of the gas body is also accounted for.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1964
Accession Number
AD0600603

Entities

People

  • A. J. Fedor
  • Morton P. Moyle

Organizations

  • Lehigh University

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Chemical Properties
  • Chemical Reactions
  • Controlled Atmospheres
  • Energy
  • Explosions
  • Explosives
  • Heat Capacity
  • Heat Of Vaporization
  • Heat Transfer
  • Latent Heat
  • Liquid Propellants
  • Materials
  • Measurement
  • O Rings
  • Test Methods
  • Thermal Diffusivity
  • Thermodynamic Properties

Fields of Study

  • Physics

Readers

  • Combustion science or combustion engineering.
  • Organic Chemistry
  • Rocket Propulsion.