A Method of Monitoring Explosive Under Cyclic Mechanical Stress

Abstract

Dynamic mechanical analysis is combined with mass spectrometry to study nitrocellulose under oscillating strain. At a constant temperature (150-160 deg C) and frequency 400-600 Hz nitrocellulose fractures demonstrating a modulus drop and release of products with m/z=30 and 44. At linear heating (2 deg C min-1) and frequency 10-50 Hz similar product are released in two steps, the second of which demonstrates a modulus drop and a temperature increase indicating ignition.

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Document Details

Document Type
Technical Report
Publication Date
Nov 30, 2004
Accession Number
ADA430094

Entities

People

  • Sergey Vyazovkin

Organizations

  • University of Alabama at Birmingham

Tags

Communities of Interest

  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Ball Mills
  • Chemistry
  • Degradation
  • Dielectric Polymers
  • Energetic Materials
  • Films
  • Frequency
  • Glass
  • Glass Transition Temperature
  • Mass Spectrometers
  • Mass Spectrometry
  • Materials
  • Materials Science
  • Phase Transformations
  • Polymers
  • Spectrometry
  • Transition Temperature

Readers

  • Analytical Chemistry
  • Mechanical Engineering/Mechanics of Materials.
  • Rocket Propulsion.