The Stress Intensity of a Crack at an Interface Between Two Materials.

Abstract

The stress singularity at the tip of a crack, either lying along or perpendicular to the interface of the two materials, is first investiga-ted by the complex variable method. The order of the singularity is shown to be dependent on both the crack geometry and two parameters alpha, beta which are related to the four elastic constants of the two materials. A hybrid crack element is constructed to properly account for the crack tip singularity. The stress intensity factors for cracks in different bimaterial continua are then calculated using finite element method. (Author-PL)

Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1973
Accession Number
AD0768636

Entities

People

  • Kuen-yuan Lin

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Complex Variables
  • Crack Tips
  • Cracks
  • Finite Element Analysis
  • Geometry
  • Intensity
  • Materials
  • Mathematics
  • Stress Intensity Factors
  • Stresses
  • Topology

Readers

  • Materials Science (Mechanical Engineering).
  • Phased Array Antenna Design.