Experimental investigation of dynamic mixed-mode fracture initiation

J. Lambros, J. J. Mason, A. J. Rosakis

Research output: Contribution to journalConference articlepeer-review


The use of a coherent gradient sensing (CGS) apparatus is explored in dynamic fracture mechanics investigations. The ability of the method to accurately quantify mixed-mode crack tip deformation fields is tested under dynamic loading conditions. The specimen geometry and loading follow that of Lee and Freund1, 2 who give the theoretical and numerical mixed mode K values as a function of time for the testing conditions. The CGS system's measurements of KI and KII are compared with the predicted results, and good agreement is found.

Original languageEnglish (US)
Pages (from-to)70-83
Number of pages14
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Dec 1 1991
Externally publishedYes
Event2nd International Conference on Photomechanics and Speckle Metrology 1991 - San Diego, United States
Duration: Jul 21 1991 → …

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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