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Experimental Mechanics

, Volume 21, Issue 6, pp 227–233 | Cite as

Time-dependent optical characterization in the photoviscoelastic study of stress-wave propagation

This study compares a theoretical viscoelastic solution and its predicted fringe patterns for stress-wave propagation in a thin rod of polyurethane material with the photoviscoelastic data from a similar experimental arrangement
  • R. J. Arenz
  • U. Soltész
Article

Abstract

Dynamic photoviscoelastic analysis requires the time and temperature dependency of the material to be taken into account. Mechanical relaxation processes have generally been incorporated in dynamic analysis, but there has been no widespread application of optical relaxation or creep functions over the complete time spectrum in photomechanics of birefringent polymers. Using material characterizations previously developed, this study compares a theoretical viscoelastic solution and its predicted fringe patterns for stress-wave propagation in a thin rod of polyurethane material (Solithane 113) with the photoviscoelastic data from a similar experimental arrangement. The agreement demonstrates both the validity and general necessity of such an approach for the time-domain characteristic of wave-propagation phenomena in low-modulus polymers.

Keywords

Polyurethane Experimental Arrangement Widespread Application Material Characterization Fringe Pattern 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Society for Experimental Mechanics, Inc. 1981

Authors and Affiliations

  • R. J. Arenz
    • 1
  • U. Soltész
    • 2
  1. 1.Gonzaga UniversitySpokane
  2. 2.Fraunhofer-Institut für WerkstoffmechanikFreiburgFRG

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