SOME THREE-DIMENSIONAL INCLUSION PROBLEMS IN ELASTICITY

Abstract

The theory of potential functions is applied to solve a number of three-dimensional problems involving sheet-like inclusions embedded in elastic solids. Two types of inclusions are considered; namely, that of a rigid elliptical disk and a rigid sheet containing an elliptical hole. By varying the ellipticity of the disk and hole, certain information on the general character of the stresses around a plane inclusion of arbitrary shape may be obtained. More precisely, if reference is made to a suitable coordinate system, the functional forms of the stresses in the close neighborhood of the inclusion border can be expressed independently of uncertainties of both the inclusion geometry and of the applied stresses or displacements. In general, the intensification of the local stresses can be described by three parameters which may be used to establish criteria for the failure of the solid containing the inclusions.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1966
Accession Number
AD0647240

Entities

People

  • George C. Sih
  • Mumtaz K. Kassir

Organizations

  • Lehigh University

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Boundaries
  • Cartesian Coordinates
  • Coordinate Systems
  • Engineering
  • Equations
  • Geometry
  • Jet Propulsion
  • Materials
  • Materials Science
  • Mechanics
  • Military Research
  • New York
  • Physics Laboratories
  • Shear Stresses
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Mathematics

Readers

  • Calculus or Mathematical Analysis
  • Electromagnetic Wave Scattering and Antenna Radiation Engineering