Soft-Recovery of Explosively Formed Penetrators

Abstract

A model is presented to help in the design of a "soft-catch" device for safely recovering explosively formed penetrators (EFPs). The closed form analytic solution provides a means to extract drag coefficients within the various materials used in the soft-catch for predictive design and custom deceleration of a variety of kinetic energies and projectile shapes. The method for characterizing the media is dependent only on position-time data within the media and EFP projectile mass and shape information. Experimental data is presented for several EFP designs in parallel with the excellent agreement of the analytic model. The characterization process allows for subsequent optimization and prescription of soft-catch designs to capture the projectile for metallurgical analysis and validation of high-rate, constitutive material models.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 2005
Accession Number
ADA439174

Entities

People

  • David Lambert
  • Jonathan A. Muse
  • Matthew Pope
  • Stanley Jones

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Coefficients
  • Deceleration
  • Equations
  • Experimental Data
  • Explosively Formed Penetrators
  • Explosives
  • Governments
  • Materials
  • Mechanics
  • Military Research
  • Munitions
  • National Security
  • Polystyrenes
  • Projectiles
  • Recovery

Readers

  • Computational Fluid Dynamics (CFD)
  • Explosive Engineering.
  • ballistics.