Path-Independent Integrals and Fracture Mechanics

Abstract

This report summarizes research activities carried out under the subject grant during the period May 1982 to April 1983. Specifically, a strength-of material-type fracture mechanics for beams has been development which leads, for example, to an exceedingly simple formula for the stress intensity factor of a cracked beam. Further, several aspects of conservation laws in elasticity have been clarified and extended to fluid dynamics, elucidating the classical Blasius Theorem. Moreover, conservation laws for dielectrics have been derived which will be used later to determine energy release rates. Finally, procedures to calculate upper and lower bounds of energy-release rates in elastic structural elements have been developed and will be used in the future to calculate stress intensity factors. (jes)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1983
Accession Number
ADA215332

Entities

People

  • A. Golebiewska-herrmann
  • G. Herrmann

Organizations

  • Stanford University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Applied Mechanics
  • Composite Materials
  • Computational Fluid Dynamics
  • Continuum Mechanics
  • Cracks
  • Dielectrics
  • Elastic Properties
  • Electric Fields
  • Fluid Dynamics
  • Fracture (Mechanics)
  • J Integrals
  • Materials
  • Mechanics
  • Momentum
  • Stress Intensity Factors
  • Stresses
  • Thermoelasticity

Readers

  • Calculus or Mathematical Analysis
  • Fluid Dynamics.
  • Materials Science (Mechanical Engineering).