RECENT ADVANCES IN DYNAMIC PHOTOELASTICITY,

Abstract

The application of photoelasticity to dynamic stress analysis generally involves the use of high-speed photography. The equipment and techniques which were developed for studying transient stresses in low modulus photoelastic materials are reviewed briefly. The emphasis of the paper is on the use of a special dual-beam polariscope for obtaining simultaneous normal and oblique incidence stress patterns in conjunction with a highspeed framing camera, to study stress wave propagation in high modulus photoelastic materials subjected to explosive loads. Dynamic stress patterns were photographed at speeds up to 720,000 frames per second, using flash tubes and filters to obtain monochromatic light. The procedures are described and typical results are given. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1964
Accession Number
AD0617835

Entities

People

  • Paul D. Flynn

Tags

DTIC Thesaurus Topics

  • Cameras
  • Explosives
  • Flash Lamps
  • High Speed Photography
  • Materials
  • Monochromatic Light
  • Optical Equipment
  • Photoelasticity
  • Photographic Equipment
  • Photographic Materials
  • Photographic Recording Media
  • Photography
  • Stress Analysis
  • Stress Waves
  • Stresses
  • Wave Propagation

Readers

  • Image Processing and Computer Vision.
  • Mechanical Engineering/Mechanics of Materials.
  • Systems Analysis and Design