Simulated and Experimental In-wall Temperatures for 120 mm Ammunition

  • Mark L. Bundy US Army Research Laboratory, Aberdeen Proving Ground
  • P. J. Conroy US Army Research Laboratory, Aberdeen Proving Ground
  • J. L. Kennedy Alliant Techsystems, Inc., Hopkins
Keywords: Thermocouples, Numerical modelling, Surface temperature predictions

Abstract

Bore and chamber surface as well as subsurface temperature prediction are made for the US Army M256 120mm chromium-plated cannon firing M865 M829 and DM13 cartridges. The surface temperature predictions are validated by comparison with other numerical modelling results, while the subsurface temperature predictions are compared directly with experimental measurements made by in wall thermocouples. The surface temperature predictions fall in line with other numerical estimates, and, in general, the simulated probe temperatures at each axial location are within the circumferential and round-to-round variation in the experimental probe tempretaures.

Author Biographies

Mark L. Bundy, US Army Research Laboratory, Aberdeen Proving Ground
Dr Mltrk Ruddy obtained his PhD in Physics in 1980 from the University of Maine, Orono, ME in 1980. He is currently working on the problem of evaluating heat transfer modes forgun barrels at the US Army .Research Laboratory, Aberdeen Proving Ground, MD. He has considerable
experience in the thermal management for the improvement of tank gun accuracy.
P. J. Conroy, US Army Research Laboratory, Aberdeen Proving Ground
Mr Paul Conroy completed his MS (Mechanical Engineering) frpm the Pennsylania State University, US, in 1989. He is working as Mechanical Engineer at the US Army Research Laboratory, Aberdeen Proving Ground, MD. He has worked on cryo~enicslat the Fermi National Accelerator Laboratory, Batavia, IL.
J. L. Kennedy, Alliant Techsystems, Inc., Hopkins
Mr James Kennedy obtained his MS in Mechanical Engineering from the National Technological University. Presently, he is working as Principal design engineer at the Alliant rechsystems (ATK), Hopkins, MN. Earlier, he provided tank ammunition propulsion support at Hopeywell/ ATK for 15 years. At present, he holds four patents.
Published
2013-01-01
How to Cite
Bundy, M., Conroy, P., & Kennedy, J. (2013). Simulated and Experimental In-wall Temperatures for 120 mm Ammunition. Defence Science Journal, 46(4), 223-232. https://doi.org/10.14429/dsj.46.4081
Section
Armaments & Explosives