A dynamic photoelastic study of stress-wave propagation through an inclusion - A dynamic photoelastic study of stress-wave propagation through an inclusion showing the effects of the reflections and refractions at the interface

J. H. Hemann*, Jan Drewes Achenbach, S. J. Fang

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

A photoelastic study of the elastodynamic-stress fields around a circular, elastic inclusion (Solithane 113) embedded in an elastic plate (Hysol 4485) is presented. The edge of the plate was loaded by an explosive charge, which produced a plane, compressional stress wave of triangular shape. Isochromatic-fringe patterns were obtained, which give the maximum shear stresses, both inside the inclusion and in the surrounding medium. The principal stresses on the axis of symmetry were determined through the use of the oblique-incidence method. It was found that small tensile stresses are generated at the interface on the shadow side of the inclusion. The focusing effect inside the inclusion predicted by ray theory was not observed. Finally, the shape of the wavefront as the wave passes the inclusion was determined.

Original languageEnglish (US)
Pages (from-to)291-299
Number of pages9
JournalExperimental Mechanics
Volume16
Issue number8
DOIs
StatePublished - Aug 1 1976

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanics of Materials
  • Mechanical Engineering

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