| Project/Area Number |
23560094
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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 | Osaka Prefecture University |
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Principal Investigator |
MIMURA Koji 大阪府立大学, 工学(系)研究科(研究院), 教授 (70181972)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2013: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2012: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2011: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
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| Keywords | 座屈荷重 / 動的負荷 / 衝撃負荷 / 細長比 / 静動比 / モデル化 / 高速変形 / 弾性座屈 / 変形速度 / 高次たわみモード |
|---|
| Research Abstract |
Dynamic stability of long columns is one of the most important problems in the field of the structure mechanics or mechanical strengths of materials. In this research, dynamic stability, namely, dynamic buckling strengths of long columns made of many engineering materials were investigated experimentally. From the series of systematic experiments, the effects of loading velocities, sizes of cross sections, lengths of bars, end conditions of both ends of bars and intermediate support conditions of long bars on the dynamic buckling loads were clarified, and practical equations to evaluate the dynamic buckling loads at arbitrary loading velocities were successfully formulated.
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