Bifocal arrangement for reflected caustics for the investigation of the domain of dominance of asymptotic elastic fields in dynamic fracture

S. Krishnaswamy*, A. J. Rosakis, G. Ravichandran

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The question of the domain of dominance of the plane-stress asymptotic elastic fields in dynamic fracture is addressed for the two cases of dynamically loaded stationary cracks as well as dynamically propagating cracks. A new optical configuration is proposed which would allow for the simultaneous measurement of the apparent dynamic stress-intensity factor from two different regions around the crack-tip using the method of caustics. The results of the study indicate the importance of three-dimensional and transient effects in the interpretation of optical measurements.

Original languageEnglish (US)
Pages (from-to)71-77
Number of pages7
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume160
StatePublished - Dec 1 1989

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Mechanical Engineering

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