Challenge to evaluation of internal stress for materials with coarse grains
| Project/Area Number |
24656083
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Niigata University |
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Principal Investigator |
SUZUKI Kenji 新潟大学, 人文社会・教育科学系, 教授 (30154537)
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| Project Period (FY) |
2012-04-01 – 2014-03-31
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2013: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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| Keywords | 残留応力 / 粗大粒 / 溶接材 / シンクロトロン放射光 / 回折斑点追跡法 / 放射光Ｘ線 / 内部応力測定 / スパイラルスリット / 溶接残留応力 / PILATUS |
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| Research Abstract |
A diffraction spot trace method (DSTM) was proposed. The DSTM is a new technique to measure internal stresses, which combined a special rotating slit system and an area de-tector (PILATUS). The enough collimation of the special rotating slit system was examined from measuring the bending stress in a specimen of S45C. The bending stresses in the specimens of aluminum and magnesium alloys were measured using the DSTM. The ob-tained stress distributions corresponded with the applied stresses. The DSTM was applied to the measurement of the welding residual stresses. The residual stress map by the DSTM corresponded with the simulated results by a finite element method.
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Report
(3 results)
Research Products
(18 results)
