Griffith Relation for Surface Cracks Placed in Bending

Abstract

The relation between flexural strength and crack size was investigated using glass specimens containing semi-elliptical shaped surface cracks with different lengths and depths. The value of the dimensionless factor in the Griffith fracture equation was found to vary between 2 to 3.8 depending on the crack depth to specimen thickness ratio. These results were compared to the theoretical results of others.

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Document Details

Document Type
Technical Report
Publication Date
Mar 27, 1972
Accession Number
AD0740769

Entities

People

  • F. F. Lange

Organizations

  • Westinghouse Electric Corporation

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Ceramic Materials
  • Crack Propagation
  • Cracks
  • Equations
  • Experimental Data
  • Flexural Strength
  • Geography
  • Grain Size
  • Materials
  • Measurement
  • Military Research
  • Pennsylvania
  • Shape
  • Stress Corrosion
  • Stresses
  • Thickness
  • United States

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).