| Project/Area Number |
22560568
|
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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 |
Building structures/materials
|
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| Research Institution | Okayama University of Science (2011-2012)
The University of Shiga Prefecture (2010) |
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Principal Investigator |
|
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| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
|
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| Keywords | 座屈 / 繰り返し載荷 / 鋼管 / 有限要素法 / 複合加力材料試験 / 複合加力試験 |
|---|
| Research Abstract |
Hysteretic behavior numerical analysis has been carried out for elastic-plastic thin-walled cylinders subjected to a constant axial compressive force and cyclic torsion. It has been shown that various deformation modes appear, which are different from those under the constant axial contraction, and that those modes cause rapid growth of strain nonuniformity. Also the theory for predicting this phenomenon has been generalized to the alternating plasticity region and the numerical analysis program has been developed. Since this phenomenon is analogous to internal buckling, finite element analysis for it has been performed.
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