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)

Abstract

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 - The International Society for Optical Engineering
Volume6491
Publication statusPublished - 2007
Externally publishedYes
EventVideometrics IX - San Jose, CA, United States
Duration: 2007 Jan 292007 Jan 30

Other

OtherVideometrics IX
CountryUnited States
CitySan Jose, CA
Period07/1/2907/1/30

Fingerprint

crack propagation
Crack propagation
actuators
Cameras
cameras
Imaging techniques
kinking
high speed cameras
High speed cameras
Elastic waves
crack tips
elastic waves
Crack tips
imaging techniques
stress distribution
diffraction patterns
cracks
occurrences
Cracks
Experiments

Keywords

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

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

Cite this

Okinaka, T., Karimov, P., Etoh, T., & Oguni, K. (2007). Crack propagation imaging by the ISIS camera and a video trigger system. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 6491). [64910Y]

Crack propagation imaging by the ISIS camera and a video trigger system. / Okinaka, Tomoo; Karimov, Pavel; Etoh, Takeharu; Oguni, Kenji.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6491 2007. 64910Y.

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

Okinaka, T, Karimov, P, Etoh, T & Oguni, K 2007, Crack propagation imaging by the ISIS camera and a video trigger system. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 6491, 64910Y, Videometrics IX, San Jose, CA, United States, 07/1/29.
Okinaka T, Karimov P, Etoh T, Oguni K. Crack propagation imaging by the ISIS camera and a video trigger system. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6491. 2007. 64910Y
Okinaka, Tomoo ; Karimov, Pavel ; Etoh, Takeharu ; Oguni, Kenji. / Crack propagation imaging by the ISIS camera and a video trigger system. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 6491 2007.
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