Accession Number:

ADA053660

Title:

Finite Element Elastic-Plastic Analysis of Cracks.

Descriptive Note:

Final rept. 1 Feb 74-1 Feb 78,

Corporate Author:

GEORGIA INST OF TECH ATLANTA SCHOOL OF ENGINEERING SCIENCE AND MECHANICS

Personal Author(s):

Report Date:

1978-03-01

Pagination or Media Count:

46.0

Abstract:

This is a summary of research performed in the areas a development of two-dimensional hybrid finite element procedures to calculate stress intensity factors corresponding to general r to the minus alpha stress singularities in isotropic as well as anistropic materials b study of the convergence of the assumed displacement hybrid finite element procedure in fracture mechanics problems c development of a three-dimensional hybrid finite element procedure to calculate the elastic combined mode stress-intensity factors K1, K2 and K3 that vary along an arbitrarily curved three-dimensional crack front d hybrid finite element solutions of fundamental three-dimensional crack problems e development of a two-dimensional finite element procedure for analyzing plane problems of fracture involving large-scale yielding conditions and under cyclic loading f study of the J-integral as a ductile fracture initiation condition g studies of finite deformation effects near the crack-tip h analysis of stable crack growth under rising load and study of criteria for loss of stability of growth in ductile materials and i elastic-plastic analysis of effects of crack closure on fatigue crack growth rates. Author

Subject Categories:

  • Numerical Mathematics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE