Accession Number : ADA427318


Title :   Spall Strength of Tungsten Carbide


Descriptive Note : Final rept. Jul 2002-Feb 2004


Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD


Personal Author(s) : Dandekar, Dattatraya P


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a427318.pdf


Report Date : Sep 2004


Pagination or Media Count : 28


Abstract : Spall strength of a hot-pressed tungsten carbide manufactured by Cercom Inc. referred to as CER-WC. is determined by performing plane shock wave experiments as a function of shock-induced compressive stress and its duration. Shock-induced stress varied between 3.5 and 24 GPa. The duration of shock-induced stress. i.e.. pulse with. ranged from 0.35 to 1.13 mus. These experiments showed that CER-WC retained substantial spall strength to 24 GPa. i.e.. around 3x the value of the Hugoniot elastic limit. Spall strength of CER-WC was not significantly influenced by the pulse-width of shock-induced compression. Spall strength of CER-WC decreased from a value of 2.06 +/- 0.04 to 1.22 + 0.38 GPa as shock-induced stress increased from 3.4 to 24 GPa.


Descriptors :   *SHOCK WAVES , *TUNGSTEN CARBIDES , HOT PRESSING , PLANE WAVES


Subject Categories : Inorganic Chemistry
      Acoustics


Distribution Statement : APPROVED FOR PUBLIC RELEASE