DETONATION PRESSURE MEASUREMENTS ON PETN

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PETN is widely recognized as an example of nearly ideal detonation performance. The chemical composition is such that little or no carbon is produced in the detonation products. The reaction zone width is less than currently detectable. (<1 ns) Observations on PETN have thus become a baseline for EOS model predictions. It has therefore become important to characterize the detonation parameters as accurately as possible in order to provide the most exacting comparisons of EOS predictions with experimental results. We undertook a painstaking review of the detonation pressure measurements reported in an earlier work that was presented at the Fifth ... continued below

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Green, L. G. & Lee, E. L. June 23, 2006.

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PETN is widely recognized as an example of nearly ideal detonation performance. The chemical composition is such that little or no carbon is produced in the detonation products. The reaction zone width is less than currently detectable. (<1 ns) Observations on PETN have thus become a baseline for EOS model predictions. It has therefore become important to characterize the detonation parameters as accurately as possible in order to provide the most exacting comparisons of EOS predictions with experimental results. We undertook a painstaking review of the detonation pressure measurements reported in an earlier work that was presented at the Fifth Detonation Symposium and found that corrections were required in determining the shock velocity in the PMMA witness material. We also refined the impedance calculation to account for the difference between the usual ''acoustic'' method and the more accurate Riemann integral. Our review indicates that the CJ pressures previously reported for full density PETN require an average lowering of about 6 percent. The lower densities require progressively smaller corrections. We present analysis of the records, supporting hydrodynamic simulations, the Riemann integral results, and EOS parameter values derived from the revised results.

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PDF-file: 8 pages; size: 1 Mbytes

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  • Presented at: 13th International Detonation Symposium, Norfolk, VA, United States, Jul 23 - Jul 28, 2006

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  • Report No.: UCRL-CONF-222433
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 896578
  • Archival Resource Key: ark:/67531/metadc885640

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • June 23, 2006

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  • Sept. 22, 2016, 2:13 a.m.

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  • Nov. 23, 2016, 3:21 p.m.

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Green, L. G. & Lee, E. L. DETONATION PRESSURE MEASUREMENTS ON PETN, article, June 23, 2006; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc885640/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.