| Project/Area Number |
20560097
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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 |
Materials/Mechanics of materials
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
SUZUKI Takayuki National Institute of Advanced Industrial Science and Technology, 先進製造プロセス研究部門, 研究グループ長 (40357299)
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| Co-Investigator(Kenkyū-buntansha) |
NISHIMURA Yoshihiro 独立行政法人産業技術総合研究所, 先進製造プロセス研究部門, 主任研究員 (90357723)
SASAMOTO Akira 独立行政法人産業技術総合研究所, 先進製造プロセス研究部門, 主任研究員 (90357129)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Keywords | 機械材料・材料力学 / 磁性 / 長寿命化 / 非破壊検査 / 欠陥 / 悲破壊検査 |
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| Research Abstract |
In order to establish quantitative nondestructive evaluation of complicated defects or cracks, magnetic flux leakage distribution around defects was measured using advanced magnetic sensor of fluxgate sensor. And the relationship between magnetic flux leakage distribution and magnetic dipole moment of defect was formulated. By using inverse analysis technique such as Tikhonov regularization, magnetic dipole moment could be obtained and the width, shape and size of complicated defects were evaluated. It was concluded that nondestructive evaluation and analysis system for complicated cracks or defects was constructed by using advanced magnetic sensor measurement and magnetic inverse analysis technique.
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