A Photoelastic Study of Cracking in Motor Grain Models

Abstract

By capitalizing on observed similarities between the cracked finned model and a cracked cylinder when placing the fin top at the inner edge of the cylinder, estimates were made by assuming a plane strain solution for the finned model in finite length models. Based upon the aforementioned limited results, use of a modified plane strain solution appears to yield a slightly conservative prediction for long shallow cracks to significantly conservative prediction for deep part-through cracks.

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Document Details

Document Type
Technical Report
Publication Date
May 21, 2004
Accession Number
ADA425195

Entities

People

  • C. W. Smith
  • J. D. Hansen

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Air Force Research Laboratories
  • Applied Mechanics
  • Aspect Ratio
  • Crack Tips
  • Cracks
  • Department Of Defense
  • Fracture (Mechanics)
  • Information Operations
  • Internal Pressure
  • Measurement
  • Mechanics
  • Military Research
  • Stress Intensity Factors
  • Stresses

Readers

  • Aerodynamics/Aeronautics.
  • Fluid Dynamics.
  • Structural Health Monitoring of Composite Structures.