Sliding Forces and Normal Loads on Projectile Rotating Bands.

Abstract

A theory is presented to determine the projectile sliding forces in interior ballistics. Emphasis is placed on the barrel entrance region where the projectile rotating bands are impelled on to the rifling. It is proposed that the contact stress is constant and is given by a modified von Mises failure criterion. Normal loads and friction forces are dependent on the growth of the contact area which is derived from the geometrical details of the projectile and barrel. Radial displacements at the contact are included. The theory is in agreement with quasi-static and dynamic laboratory tests. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1983
Accession Number
ADA126351

Entities

People

  • A. Kent Stiffler

Organizations

  • Mississippi State University

Tags

DTIC Thesaurus Topics

  • Air Force
  • Elastic Properties
  • Engineering
  • Friction
  • Geometry
  • Gun Barrels
  • Hydrostatic Pressure
  • Interior Ballistics
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Materials Testing
  • Mechanical Engineering
  • Mechanical Properties
  • Mechanics
  • Plastics

Fields of Study

  • Physics

Readers

  • Structural Dynamics.
  • Tribology (the study of the boundary interaction between sliding surfaces, lubrication, wear and friction).
  • ballistics.