Terminal ballistics of a reduced-mass penetrator. Final report, January 1990--December 1995

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Description

This report presents the results of an experimental program to examine the performance of a reduced-mass concept penetrator impacting semi-infinite rolled homogeneous armor (RHA) at normal incidence. The reduced-mass penetrator used in this program is a solid tungsten alloy rod with eight holes drilled parallel to its axis, equally spaced on a circle, with axes parallel to the rod axis. Its performance was contrasted with baseline data for length-to- diameter ratios (L/D) 4 and 5 solid tungsten alloy penetrators. Striking velocity was nominally 1.6 km/s. A determined effort to reduce the scatter in the data by analysis of collateral data ... continued below

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75 p.

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Silsby, G.F. July 1, 1996.

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Description

This report presents the results of an experimental program to examine the performance of a reduced-mass concept penetrator impacting semi-infinite rolled homogeneous armor (RHA) at normal incidence. The reduced-mass penetrator used in this program is a solid tungsten alloy rod with eight holes drilled parallel to its axis, equally spaced on a circle, with axes parallel to the rod axis. Its performance was contrasted with baseline data for length-to- diameter ratios (L/D) 4 and 5 solid tungsten alloy penetrators. Striking velocity was nominally 1.6 km/s. A determined effort to reduce the scatter in the data by analysis of collateral data from the US Army Research Laboratory (ARL) and literature sources suggested only a rather weak influence of L/D on penetration even at L/Ds approaching 1 and provided a tentative relationship to remove the influence of target lateral edge effects. It tightened up the holed-out rod data enough to be able to conclude with a moderate degree of certainty that there was no improvement in penetration as suggested by a simplistic density law model. A companion work by Kimsey of ARL examines the performance of this novel penetrator concept computationally, using the Eulerian code CTH. His work explains the possible causes of reduced performance suggested by analysis by Zook and Frank of ARL, though with some relative improvement in performance at higher velocities.

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75 p.

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OSTI as DE96012393

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  • Other Information: PBD: Jul 1996

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  • Other: DE96012393
  • Report No.: ARL-MR--320
  • DOI: 10.2172/253340 | External Link
  • Office of Scientific & Technical Information Report Number: 253340
  • Archival Resource Key: ark:/67531/metadc667192

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  • July 1, 1996

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  • June 29, 2015, 9:42 p.m.

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  • April 21, 2016, 10:09 p.m.

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Silsby, G.F. Terminal ballistics of a reduced-mass penetrator. Final report, January 1990--December 1995, report, July 1, 1996; United States. (digital.library.unt.edu/ark:/67531/metadc667192/: accessed September 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.