Microstructure of Plastic Bonded Explosives and Its Evolution after Thermal and Mechanical Aggressions

Pengwan Chen*, Fenglei Huang, Yansheng Ding

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

Abstract

Because sensitivity of an explosive is highly controlled by its microstructure, it is very important to examine and characterize it. Both scanning electronic microscopy and polarized light microscopy were chosen to .examine the microstructure of selected plastic bonded explosives. The initial microstructure of hot pressed plastic bonded explosives and its evolution under thermal and mechanical aggressions were studied. To better reveal the microstructure, polishing and etching techniques were developed to prepare the samples of microscopic examination. The thermal aggressions included low temperature freezing and frozen combustion. Mechanical aggressions included quasi-static Brazilian test, uniaxial compression, ultrasonic wave insult and long-pulse low-velocity impact. The characteristic damage modes under different solicitations were analyzed.

Original languageEnglish
Pages368-372
Number of pages5
Publication statusPublished - 2003
EventProceedings of the 2003 International Autumn Seminar on Propellants, Explosives and Pyrotechnics (2003 IASPEP) - Theory and Practice of Energetic Materials - Guilin, China
Duration: 15 Oct 200318 Oct 2003

Conference

ConferenceProceedings of the 2003 International Autumn Seminar on Propellants, Explosives and Pyrotechnics (2003 IASPEP) - Theory and Practice of Energetic Materials
Country/TerritoryChina
CityGuilin
Period15/10/0318/10/03

Keywords

  • Damage
  • Mechanical aggression
  • Microstructure
  • Polymer bonded explosives
  • Thermal aggression

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