Towards Failure Pattern Formation in Brittle Materials

Abstract

Several Edge-on Impact (EOI) tests on transparent glasses and polycrystalline ceramics have shown that failure fronts have an extremely rough morphology, including the appearance of spikes. A simple thermodynamic theory has been used to interpret the observed morphological instability of failure fronts. For the case of isotropic phases, the instability criterion can be obtained in explicit form.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2006
Accession Number
ADA481912

Entities

People

  • J. W. Mccauley
  • M. A. Grinfeld
  • S. E. Schoenfeld
  • T. W. Wright

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Chemical Reactions
  • Crystal Structure
  • Elastic Properties
  • Equations
  • Fluid Mechanics
  • Instability
  • Materials
  • Mechanical Properties
  • Mechanics
  • Military Research
  • Optical Materials
  • Polycrystals
  • Shear Modulus
  • Stresses
  • Wave Propagation
  • Waves

Readers

  • Materials Science (Mechanical Engineering).
  • Structural Health Monitoring of Composite Structures.
  • Theoretical Analysis.