| Project/Area Number |
15K05737
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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 |
Production engineering/Processing studies
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| Research Institution | Okayama University |
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Principal Investigator |
Uemori Takeshi 岡山大学, 自然科学研究科, 准教授 (70335701)
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| Research Collaborator |
TADA Naoya
YOSHIDA Fusahito
NARITA Shinobu
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| Project Period (FY) |
2015-10-21 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | 弾塑性材料モデル / 大ひずみ / 一貫成形 / FEM / 高精度材料モデル / バウシンガ効果 / 降伏曲面 / 残留応力 / 材料モデル |
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| Outline of Final Research Achievements |
In the present research, finite element methods with high accuracy were developed for the improvement of predicting defaults during metal forming before producing industrial products. In order to realize the above mentioned systems, the high accurate yield function "Yoshida 6 order yield function" and the high accurate kinematic hardening model "Yoshida-Uemori model" were introduced into the commercial finite element methods. To verify the developed system, two kinds of basic mechanical tests "bi-axial compression test" and "cyclic tension-compression test" for a pure aluminum sheet were conducted. The calculated responses (Equi-plastic strain loci and cyclic stress-strain responses) could capture the corresponding experimental data accurately. For further investigations, finite element simulations of tension levelling process after rolling deformation were carried out. The calculated results showed good agreements with the experiment.
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