Dynamic Characterization of Mock Explosive Material Using Reverse Taylor Impact Experiments

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The motivation for the current study is to evaluate the dynamic loading response of an inert mock explosive material used to replicate the physical and mechanical properties of LX-17-1 and PBX 9502 insensitive high explosives. The evaluation of dynamic material parameters is needed for predicting the deformation behavior including the onset of failure and intensity of fragmentation resulting from high velocity impact events. These parameters are necessary for developing and validating physically based material constitutive models that will characterize the safety and performance of energetic materials. The preliminary study uses a reverse Taylor impact configuration that was designed to measure ... continued below

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Ferranti, L; Gagliardi, F J; Cunningham, B J & Vandersall, K S March 25, 2010.

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The motivation for the current study is to evaluate the dynamic loading response of an inert mock explosive material used to replicate the physical and mechanical properties of LX-17-1 and PBX 9502 insensitive high explosives. The evaluation of dynamic material parameters is needed for predicting the deformation behavior including the onset of failure and intensity of fragmentation resulting from high velocity impact events. These parameters are necessary for developing and validating physically based material constitutive models that will characterize the safety and performance of energetic materials. The preliminary study uses a reverse Taylor impact configuration that was designed to measure the dynamic behavior of the explosive mock up to and including associated fragmentation. A stationary rod-shaped specimen was impacted using a compressed-gas gun by accelerating a rigid steel anvil attached to a sabot. The impact test employed high-speed imaging and velocity interferometry diagnostics for capturing the transient deformation of the sample at discrete times. Once established as a viable experimental technique with mock explosives, future studies will examine the dynamic response of insensitive high explosives and propellants.

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PDF-file: 12 pages; size: 8.6 Mbytes

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  • Presented at: SEM Annual Conference & Exposition on Experimental and Applied Mechanics, Indianapolis, IN, United States, Jun 07 - Jun 10, 2010

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  • Report No.: LLNL-PROC-426362
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 988954
  • Archival Resource Key: ark:/67531/metadc1014562

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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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  • March 25, 2010

Added to The UNT Digital Library

  • Oct. 14, 2017, 8:36 a.m.

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  • Oct. 27, 2017, 5:34 p.m.

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Ferranti, L; Gagliardi, F J; Cunningham, B J & Vandersall, K S. Dynamic Characterization of Mock Explosive Material Using Reverse Taylor Impact Experiments, article, March 25, 2010; Livermore, California. (digital.library.unt.edu/ark:/67531/metadc1014562/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.