Creep Testing Plastic-Bonded Explosives in Uni-axial Compression

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High fidelity measurements of time-dependent strain in the plastic-bonded explosives LX-17-1 and PBX 9502 have been performed under constant, uni-axial, compressive load using a custom designed apparatus. The apparatus uses a combination of extensometers and linear variable differential transformers coupled with a data acquisition system, thermal controls, and gravitational loading. The materials being tested consist of a crystalline explosive material mixed with a polymeric binder. The behavior of each material is related to the type of explosive and to the percentage and type of binder. For any given plastic-bonded explosive, the creep behavior is also dependent on the stress level ... continued below

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Gagliardi, F J & Cunningham, B J March 13, 2008.

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High fidelity measurements of time-dependent strain in the plastic-bonded explosives LX-17-1 and PBX 9502 have been performed under constant, uni-axial, compressive load using a custom designed apparatus. The apparatus uses a combination of extensometers and linear variable differential transformers coupled with a data acquisition system, thermal controls, and gravitational loading. The materials being tested consist of a crystalline explosive material mixed with a polymeric binder. The behavior of each material is related to the type of explosive and to the percentage and type of binder. For any given plastic-bonded explosive, the creep behavior is also dependent on the stress level and test temperature. Experiments were conducted using a 3 x 3 stress-temperature matrix with a temperature range of 24 C to 70 C and with stresses ranging from 250-psi to 780-psi. Analysis of the data has shown that logarithmic curve fits provide an accurate means of quantification and facilitate a long-term predictive capability. This paper will discuss the design of the apparatus, experimental results, and analyses.

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PDF-file: 12 pages; size: 2.5 Mbytes

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  • Presented at: SEM XI International Congress, Orlando, FL, United States, Jun 02 - Jun 05, 2008

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  • Report No.: LLNL-CONF-402307
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 945160
  • Archival Resource Key: ark:/67531/metadc897108

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Office of Scientific & Technical Information Technical Reports

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  • March 13, 2008

Added to The UNT Digital Library

  • Sept. 27, 2016, 1:39 a.m.

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  • Nov. 23, 2016, 12:04 p.m.

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Gagliardi, F J & Cunningham, B J. Creep Testing Plastic-Bonded Explosives in Uni-axial Compression, article, March 13, 2008; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc897108/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.