Photoelastic Investigation of the Double Torsion Specimen.

Abstract

The stress distribution of the double-torsion fracture mechanics specimen geometry is presented using a photoelastic frozen stress technique. Isochromatic fringes of a plastic double-torsion specimen under load were photographed and analyzed in the top, middle and bottom planes parallel to the top surface. Principal stress directions for these planes are also given. The relative magnitudes of the principal stresses perpendicular to the crack plane at the crack tip, crack origin and a point midway between the origin and crack tip are shown. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1982
Accession Number
ADA119135

Entities

People

  • B. Hindin

Organizations

  • University of Illinois Urbana–Champaign

Tags

DTIC Thesaurus Topics

  • Applied Mechanics
  • Composite Materials
  • Crack Tips
  • Cracks
  • Fracture (Mechanics)
  • Geometry
  • High Temperature
  • Leading Edges
  • Light Sources
  • Materials
  • Mechanics
  • Military Research
  • Monochromatic Light
  • Photographs
  • Research Facilities
  • Stresses
  • Thickness

Readers

  • Materials Science (Mechanical Engineering).
  • Spectroscopy.