2009 Fiscal Year Final Research Report
Image analysis of the unstable crack growth under compresive loading condition with ultra-high-speed video camera
| Project/Area Number |
18560477
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Kinki University |
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Principal Investigator |
OKINAKA Tomoo Kinki University, 理工学部, 講師 (90298985)
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| Co-Investigator(Kenkyū-buntansha) |
TAKEHARA Kousei 近畿大学, 理工学部, 教授 (50216933)
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| Project Period (FY) |
2006 – 2009
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| Keywords | 応用力学 / 画像計測 |
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| Research Abstract |
Unstable crack growth under the quasi-static loading condition is studied experimentally and numerically. Images of the crack growth and the stress distribution around the growing crack tip, which is visualized by using photo-elastic technique, are successfully captured by the ultra-high-speed video camera with the frame rate of 1Mfps. Next, numerical algorithm to simulate the unstable crack growth is proposed in this work. The simulation result shows a good agreement with the experimental result, and it is shown that the proposed algorithm has the sufficient accuracy.
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