Dynamics of the Oblique Impact and Ricochet of Nondeforming Spheres against Thin Plates

Abstract

The dynamics of the impact of hard spheres against mild steel and aluminum alloy plates has been investigated by using an analytical model of impact dynamics to interpret experimental data. The analytical model assumes rigid body response of the sphere to forces on the sphere expressed as a quadratic function of the speed of impact and a factor equal to the presented area of contact between the sphere and plate. The dependence of the force on speed is determined by an empirical correlation of the constants in the quadratic function experimental measurements of the residual speed for impacts at normal incidence. The failure of the plates is modeled by the removal of resisting force over predetermined areas once critical depths of penetration have been exceeded.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1976
Accession Number
ADA030268

Entities

People

  • Marvin E. Backman
  • Stephen A. Finnegan

Organizations

  • Naval Air Weapons Station China Lake

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Air Force Facilities
  • Aluminum Alloys
  • Curvature
  • Experimental Data
  • Jet Propulsion
  • Materials
  • Measurement
  • Mechanical Properties
  • Military Research
  • Physics
  • Physics Laboratories
  • Projectiles
  • Test And Evaluation
  • War Colleges
  • Weapons

Readers

  • Calculus or Mathematical Analysis
  • Combustion Dynamics and Shock Wave Physics.
  • Structural Health Monitoring of Composite Structures.