Crack propagation imaging by the ISIS camera and a video trigger system

Tomoo Okinaka, Pavel Karimov, Takeharu Etoh, Kenji Oguni

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)


An ultra-high speed camera of IMfps was applied to visualize the crack propagation. Change of stress field around the propagating crack tip was captured as a change of the fringe pattern by means of the photo-elastic imaging technique. Newly developed video trigger system is employed to detect the occurrence of the crack propagation as a trigger in the experiment. The trigger successfully perceived the initiation of the crack propagation stably. Also its response time was fast enough even for the image capturing with IMfps. As a result, it is revealed that the elastic wave, propagating in the continuous body, has a significant effect on the velocity and kinking behavior of the propagating crack.

Original languageEnglish
Title of host publicationProceedings of SPIE-IS and T Electronic Imaging - Videometrics IX
ISBN (Print)0819466042, 9780819466044
Publication statusPublished - 2007
Externally publishedYes
EventVideometrics IX - San Jose, CA, United States
Duration: 2007 Jan 292007 Jan 30

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherVideometrics IX
Country/TerritoryUnited States
CitySan Jose, CA


  • Crack propagation
  • High-speed imaging
  • Reflected wave
  • Video trigger

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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