Stress-Intensity Factor Equations for Cracks in Three-Dimensional Finite Bodies Subjected to Tension and Bending Loads

Abstract

Stress-intensity factor equations are presented for an embedded elliptical crack, a semi-elliptical surface crack, a quarter-elliptical corner crack, a semi-elliptical surface crack along the bore of a circular hole, and a quarter-elliptical corner crack at the edge of a circular hole in finite plates. The plates were subjected to either remote tension or bending loads. The stress- intensity factors used to develop these equations were obtained from previous three-dimensional finite-element analyses of these crack configurations. The equations give stress-intensity factors as a function of parametric angle, crack depth, crack length, plate thickness, and, where applicable, hole radius.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1984
Accession Number
ADB183967

Entities

People

  • I. S. Raju
  • J. C. Newman Jr.

Organizations

  • Langley Research Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Applied Mechanics
  • Boundaries
  • Conversion
  • Cracks
  • Curve Fitting
  • Engineering
  • Equations
  • Finite Element Analysis
  • Fracture (Mechanics)
  • Integral Equations
  • Intensity
  • Mechanics
  • Shape
  • Stress Analysis
  • Stress Intensity Factors
  • Stresses
  • Three Dimensional

Readers

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