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

Tomoo Okinaka; Pavel Karimov; Takeharu Etoh; Kenji Oguni

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 proceeding › Conference contribution

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 language	English
Title of host publication	Proceedings of SPIE-IS and T Electronic Imaging - Videometrics IX
Publication status	Published - 2007 May 25
Externally published	Yes
Event	Videometrics IX - San Jose, CA, United States Duration: 2007 Jan 29 → 2007 Jan 30

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	6491
ISSN (Print)	0277-786X

Other

Other	Videometrics IX
Country/Territory	United States
City	San Jose, CA
Period	07/1/29 → 07/1/30

Keywords

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

Cite this

Crack propagation imaging by the ISIS camera and a video trigger system. / Okinaka, Tomoo; Karimov, Pavel; Etoh, Takeharu et al.
Proceedings of SPIE-IS and T Electronic Imaging - Videometrics IX. 2007. 64910Y (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 6491).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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title = "Crack propagation imaging by the ISIS camera and a video trigger system",

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.",

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T1 - Crack propagation imaging by the ISIS camera and a video trigger system

AU - Okinaka, Tomoo

AU - Karimov, Pavel

AU - Etoh, Takeharu

AU - Oguni, Kenji

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Y1 - 2007/5/25

N2 - 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.

AB - 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.

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KW - High-speed imaging

KW - Reflected wave

KW - Video trigger

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T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Proceedings of SPIE-IS and T Electronic Imaging - Videometrics IX

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

Abstract

Publication series

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Keywords

ASJC Scopus subject areas

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