A Ceramic Fracture Model for High Velocity Impact

Abstract

The objectives of this research program were to develop, implement, and demonstrate a failure model for aluminum oxide ceramic under impact loading. A comprehensive test program for Coors AD-85 was conducted. Four types of experiments provided a basis for the development of the ceramic failure model. A phenomenological damage-based failure model for compressive fracture of impacted aluminum oxide was developed with emphasis placed on predicting fragment sizes of failed ceramic. Test data suggested a fragment size correlation with loading rate. A model was developed incorporating the data and implemented in the EPIC hydrocode. Comparisons of the results of this model to penetration test were positive.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1993
Accession Number
ADA264728

Entities

People

  • William H. Cook

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aluminum Oxides
  • Ceramic Materials
  • Computational Science
  • Continuum Mechanics
  • Failure Mode And Effect Analysis
  • Impact Point
  • Impact Tests
  • Material Degradation Processes
  • Materials Laboratories
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Plastic Properties
  • Spacecraft

Readers

  • Computational Modeling and Simulation
  • Reinforced Composite Materials
  • Structural Health Monitoring of Composite Structures.