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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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥3,800,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥600,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2006: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | 応用力学 / 画像計測 / 光弾性試験 / 超高速ビデオカメラ / き裂不安定成長 / X-FEM / 動的J積分 / 亀裂進展 / 亀裂進展速度 / 応力波 |
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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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Report
(6 results)
Research Products
(16 results)
