Stress Intensity Estimates for a Peripherally Cracked Spherical Void and a Hemispherical Surface Pit

Abstract

Stress intensity factors are estimated for three-dimensional defects which occur in ceramic bodies. The two idealized cases considered are: (1) a spherical void with a circumferential crack at its equator stressed by uniaxial tension at infinity; and (2) a hemispherical pit at a free surface of a semi- infinite body also stressed by uniaxial tension with a circumferential crack at the semiequator of the pit. These stress intensity factors, which are given as a function of the crack length L to radius R of the spherical void or hemispherical pit, are considered as estimates because of the approximate nature of the analysis.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1978
Accession Number
ADA058573

Entities

People

  • Francis I. Baratta

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Bodies
  • Ceramic Materials
  • Civil Engineering
  • Engineering
  • Fracture (Mechanics)
  • Information Processing
  • Materials
  • Materials Engineering
  • Materials Science
  • Mechanical Properties
  • Mechanics
  • New Jersey
  • Stress Intensity Factors
  • Stresses
  • Tensile Stress
  • Three Dimensional
  • United States

Readers

  • Geochemistry
  • Materials Science (Mechanical Engineering).
  • Structural Dynamics.