Calculation of the Energy of Elastic Deformation of Kevlar Backing Plates for Ceramic Armours

Abstract

An equation is developed which enables the calculation of the elastic deformation energy of a Kevlar plate used as a backing for ceramic armour, following projectile impact. Knowledge of the plate profile at maximum deflection is required. Plate profiles were obtained by photographically recording ballistic impacts. The energy of deformation of the composite backing represents 30 to 60% of the projectile's initial kinetic energy as calculated for two light weight ceramic armours.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1992
Accession Number
ADA250129

Entities

People

  • R. G. O'donnell

Organizations

  • Defence Science and Technology Group

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Armor
  • Bending Moments
  • Ceramic Matrix Composites
  • Composite Armor
  • Composite Materials
  • Deflection
  • Elastic Properties
  • Energy
  • Failure Mode And Effect Analysis
  • Geometry
  • Impact Tests
  • Kinetic Energy
  • Materials
  • Membranes
  • Modulus Of Elasticity
  • Projectiles
  • Shear Modulus

Fields of Study

  • Physics

Readers

  • Reinforced Composite Materials
  • Structural Dynamics.
  • ballistics.