Experimentally and Theoretically Generated Isochromatic Fringe Loops of Cracks Propagating at a Constant Velocity

  • B. Stříž
  • V. Humen
  • R. Vrzala
Conference paper
Part of the International Union of Theoretical and Applied Mechanics book series (IUTAM)


The new method is presented for determining mixed-mode stress intensity factors KI and KII from larger dynamic isochromatic fringe loops. The method accounts for the effects of finite dimensions of the specimen tested. For bravity sake, there were analyzed the experimentally generated dynamic isochromatic fringe patterns around opening-mode crack in four representative SEN fracture test specimens of AcryIon (PMMA). The estimates were made by using the over-deterministic method and the authors’ method of finite plate. The results were compared.


Stress Intensity Factor Dynamic Stress Intensity Factor Dynamic Fracture Toughness Isochromatic Fringe Isochromatic Fringe Pattern 
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Copyright information

© Springer-Verlag, Berlin, Heidelberg 1985

Authors and Affiliations

  • B. Stříž
    • 1
  • V. Humen
    • 1
  • R. Vrzala
    • 1
  1. 1.Department of Mechanics and Material StrengthThe Technical College of Mechanical and Textile EngineeringLiberecCzechoslovakia

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