Experimental validation of detonation shock dynamics in condensed explosives

D. Scott Stewart, David E. Lambert, Sunhee Yoo, Bradley L. Wescott

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Experiments on the HMX-based, condensed explosive PBX-9501 were carried out to validate a reduced asymptotically derived description of detonation shock dynamics (DSD) where it is assumed that the normal detonation shock speed is determined by the total shock curvature. The passover experiment has an embedded lead disk in a right circular cylindrical charge of PBX-9501 and is initiated from the bottom. A range of dynamically changing states, with both divergent (convex) and converging (concave) shock shapes are realized as the detonation passes over the disk. The time of arrival of the detonation shock at the top surface of the charge is recorded and compared against the DSD simulation and a separate multi-material simulation (DNS). A new wide-ranging equation of state (EOS) and rate law is used to describe the explosive and is employed in both the theoretical (DSD) calculations and the multi-material simulations. The experiment, theory and simulation are found to be in excellent agreement.

Original languageEnglish (US)
Title of host publicationSHOCK COMPRESSION OF CONDENSED MATTER - 2005
Subtitle of host publicationProceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
Pages1018-1021
Number of pages4
DOIs
StatePublished - 2006
EventSHOCK COMPRESSION OF CONDENSED MATTER - 2005: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter - Baltimore, MD, United States
Duration: Jul 31 2005Aug 5 2005

Publication series

NameAIP Conference Proceedings
Volume845 II
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherSHOCK COMPRESSION OF CONDENSED MATTER - 2005: Proceedings of the Conference of the American Physical Society Topical Group on Shock Compression of Condensed Matter
Country/TerritoryUnited States
CityBaltimore, MD
Period7/31/058/5/05

Keywords

  • Detonation shock dynamics
  • Experiment
  • PBX-9501
  • Validation

ASJC Scopus subject areas

  • General Physics and Astronomy

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