Basic research for measurement of fracture control using ultra high speed observation and precise numerical analyses
| Project/Area Number |
25420016
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Kobe University |
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Principal Investigator |
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| Research Collaborator |
TSUDA Tooru
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 切断加工 / 破壊力学 / J積分 / 切り欠き径 / 荷重速度 / クラッキング加工 / 破断分離工法 / 有限要素法 / 動的J積分 / 破壊実験 / 有限要素解析 / き裂進展解析 |
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| Outline of Final Research Achievements |
Experiments and numerical simulations are achieved for three point bending fracture of materials SK85 or FC200. In dynamic elastic visco-plastic fracture of SK85, many input energy are changed to visco-plastic works. Fracture is caused by a little energy. Exact measurements for fracture energy are required to control fracture condition. Experiments for dynamic fracture of FC200 are demonstrated under the condition for various striker-tip, striker material and striker velocities. Experimental results and numerical results show that the control of dynamic crack initiation and input energy rate into specimen are important for break processing.
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Report
(5 results)
Research Products
(18 results)
