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Solidification Heat Transfer and Base Separation Analysis in the Casting of an Energetic Material in a Projectile

[+] Author Affiliations
Dawei Sun, S. Ravi Annapragada, Suresh V. Garimella

Purdue University

Sanjeev Sing

U.S. Army Armaments Research, Development and Engineering Center

Paper No. IMECE2005-80432, pp. 925-933; 9 pages
doi:10.1115/IMECE2005-80432
From:
  • ASME 2005 International Mechanical Engineering Congress and Exposition
  • Heat Transfer, Part B
  • Orlando, Florida, USA, November 5 – 11, 2005
  • Conference Sponsors: Heat Transfer Division
  • ISBN: 0-7918-4222-3 | eISBN: 0-7918-3769-6
  • Copyright © 2005 by ASME

abstract

This paper investigates the problem of base separation in the casting of energetic materials in a projectile. Special challenges that arise in casting high Prandtl number energetic materials in projectiles of complex geometries are addressed. A comprehensive numerical model is developed by integrating finite volume and finite element methods to analyze the thermal and flow fields as well as the residual stresses. The predictions, which are confirmed by experimental measurements, suggest that sustenance of a linear temperature profile along the projectile axis can eliminate base separation, and also reduce residual stresses in the final casting.

Copyright © 2005 by ASME

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