Stress Intensity Factors for Elliptical Cracks

Abstract

The combined use of a solution for an elliptical crack subjected to a polynomial distribution of internal pressure together with a free surface solution for the alternating method is reviewed in order to improve the efficiency of this numerical technique. Numerical differentiation to avoid deriving and computer programming of complex mathematical expressions is discussed. A criterion for maximum grid size for the free surface solution is proposed. Also optimum fittings of the first, second and third order polynomial distributions of internal pressure are considered.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 1974
Accession Number
AD0779469

Entities

People

  • Albert S. Kobayashi
  • Alfred N. Enetanya
  • Rameshchandra C. Shah

Organizations

  • University of Washington

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aspect Ratio
  • Boundaries
  • Computer Programming
  • Computers
  • Engineering
  • Fracture (Mechanics)
  • Internal Pressure
  • Mechanical Engineering
  • Mechanics
  • Military Research
  • Pressure Distribution
  • Shear Modulus
  • Stress Intensity Factors
  • Stresses
  • Thickness
  • Three Dimensional
  • Two Dimensional

Readers

  • Approximation Theory.
  • Operations Research
  • Structural Health Monitoring of Composite Structures.