University of Illinois Urbana-Champaign

Simultaneous determination of isopachic and isochromatic fringe patterns for dynamic loadings by holographic photoelasticity

Holloway, D. C.

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https://hdl.handle.net/2142/112076

Description

Title
Simultaneous determination of isopachic and isochromatic fringe patterns for dynamic loadings by holographic photoelasticity
Author(s)
Holloway, D. C.
Issue Date
1971-08
Keyword(s)
  • Isopachic Fringe Patterns
  • Isochromatic Fringe Patterns
  • Dynamic Loadings
  • Holographic Photoelasticity
Abstract
Two different holographic systems capable of providing separate but simultaneous isochromatic and isopachic fringe patterns for dynamic loadings are described. The development and assembly of a Q-switched ruby laser suitable for use as a light source in these systems is reported. One system involves the use of a quartz light rotator, and a double light pass through the specimen to separate the fringe patterns. The other system uses a partially aluminized specimen and a reflecting surface technique to isolate them. The theory is experimentally confirmed with static loadings, and numerous examples of dynamic events are shown.
Publisher
Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report Name or Number
  • TAM R 349
  • 1971-6013
ISSN
0073-5264
Type of Resource
text
Language
eng
Permalink
http://hdl.handle.net/2142/112076
Sponsor(s)/Grant Number(s)
National Science Foundation, Grant NSF GK 25076, 71/08
Copyright and License Information
Copyright 1971 Board of Trustees of the University of Illinois

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Technical Reports - Theoretical and Applied Mechanics (TAM) PRIMARY
TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.