Compressive properties of PBXN-110 and its HTPB binder as a function of temperature and strain rate

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The compressive constitutive strength behavior of PBXN-110 and its HTPB-based binder system was measured as a function of temperature (-55 C to +20 C) and strain rate (10{sup -3} and 2000 s{sup -1}). PBXN-110 is a plastic bonded explosive (PBX) with relatively high binder content that contains 88wt% HMX and 12wt% HTPB-based binder. A pure analog of the PBXN-110 binder system was tested for comparison to the strain rate and temperature dependence of the composite PBXN-110. As expected, the strength of PBXN-110 was found to exhibit strong temperature and strain rate dependence, attributable to the large fraction of the very ... continued below

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8 p.

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Blumenthal, W. R. (William R.); Thompson, D. G. (Darla G.); Cady, C. M. (Carl McElhinney); Gray, G. T. (George T.), III & Idar, D. J. (Deanne J.) January 1, 2002.

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Description

The compressive constitutive strength behavior of PBXN-110 and its HTPB-based binder system was measured as a function of temperature (-55 C to +20 C) and strain rate (10{sup -3} and 2000 s{sup -1}). PBXN-110 is a plastic bonded explosive (PBX) with relatively high binder content that contains 88wt% HMX and 12wt% HTPB-based binder. A pure analog of the PBXN-110 binder system was tested for comparison to the strain rate and temperature dependence of the composite PBXN-110. As expected, the strength of PBXN-110 was found to exhibit strong temperature and strain rate dependence, attributable to the large fraction of the very soft HTPB binder. The strength of the pure HTPB binder analog was challenging to measure using the split Hopkinson pressure bar (SHPB) because of its extreme softness, however satisfactory results were obtained at and below room temperature by optimizing the SHPB technique. These measurements provide the basis to develop and validate predictive material strength models for PBXN-110.

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8 p.

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  • Submitted to the 12th International Detonation Symposium, August 11-16, 2002, San Diego, CA

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  • Report No.: LA-UR-02-3183
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 976188
  • Archival Resource Key: ark:/67531/metadc935451

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

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  • January 1, 2002

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 9, 2016, 11:03 p.m.

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Blumenthal, W. R. (William R.); Thompson, D. G. (Darla G.); Cady, C. M. (Carl McElhinney); Gray, G. T. (George T.), III & Idar, D. J. (Deanne J.). Compressive properties of PBXN-110 and its HTPB binder as a function of temperature and strain rate, article, January 1, 2002; United States. (digital.library.unt.edu/ark:/67531/metadc935451/: accessed July 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.