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Influence of energetic-driven "Taylor-Wave" shock-wave prestraining on the structure/property response of depleted uranium

  • G. T. Gray
  • , C. M. Cady
  • , R. J. McCabe
  • , R. S. Hixson
  • , D. R. Korzekwa
  • , M. F. Lopez

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Scopus citations

Abstract

The influence of shock prestraining, via direct energetic "Taylor-wave" (triangular wave) loading, on the post-shock structure/property behavior of depleted uranium (DU) was studied, Samples were shock prestrained within a "soft" shock recovery fixture composed of momemtum traps and a spall plate to assure 1-dimensional loading. The DU samples exhibit roughly a 30% increase in yield strength following shock prestraining to ∼45 GPa. The texture evolution in DU was quantified using electron-backscatter diffraction (EBSD). Detailed quantification of the substructure evolution following shock prestraining revealed high volume fractions of {130}, '{172}', and {112} deformation twins. The volume fraction of {130} twins was found to be ∼10x the volume fraction of '{172}' and {112} twins. Details of the twin system activation and volume fraction relative to the local Schmidt factor within grains are presented. The influence of HE-driven shock prestraining on the structure/property response of DU is compared and contrasted to that seen in 304SS and 316SS subjected to "Taylor-wave" shock prestraining. © EDP Sciences.
Original languageEnglish
Title of host publicationJournal De Physique. IV : JP
Pages909-914
Number of pages6
ISBN (Electronic)2868839444, 9782868839442
DOIs
StatePublished - Aug 1 2006
Event8th International Conference on Mechanical and Physical Behaviour of Materials under Dyanmic Loading -
Duration: Aug 1 2006 → …

Publication series

NameJournal De Physique. IV : JP

Conference

Conference8th International Conference on Mechanical and Physical Behaviour of Materials under Dyanmic Loading
Period08/1/06 → …

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