| Project/Area Number |
18560077
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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 | Nagoya Institute of Technology |
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Principal Investigator |
TANAKA Koichi Nagoya Institute of Technology, Graduate School of Engineering, Professor (70024362)
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| Co-Investigator(Kenkyū-buntansha) |
NISHIDA Masahiro Nagoya Institute of Technology, Graduate School of Engineering, Associate Professor (60282828)
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| Project Period (FY) |
2006 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥3,840,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥240,000)
Fiscal Year 2007: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2006: ¥2,800,000 (Direct Cost: ¥2,800,000)
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| Keywords | Cellstructure / Honeycomb structure / Imnact streneth / Stress and Strain / Stress waves / Plastic collapse / Inelasticity / Deformation Characteristics / セル崩壊 / 高速衝撃 / 衝撃波 / エネルギー吸収 / 非線形振動 / 応力・ひずみ特性 |
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| Research Abstract |
So called cell structure is composed of a network of combined slid stems or solid plates to firm a porous Aid. An aluminum honeycomb, a typical cell structure composed of hexagonal cells walls, has very small nominal weight and is widely used for reinforcement of shell structures. In this project, the in-plane static and dynamic behaviors of aluminum honeycombs were investigated both experimentally and analytically. Particularly the effect of strain rates on the in-plane compression process and plastic collapse was investigated intensively by introducing a cell-male strain and a macro-sale strain. In experiments, a newly constructed impacting device was used and the compression process was measured using a laser velocimeter a high-speed video camera and strain gauges.
On the other hand, by considering the fact that in-plane deformation is large for relatively small external bads, the she& absorption characteristics was examined in order to apply aluminum honeycombs for a at and gentle man-machine damper. Also, the vibration. characteristics was investigated in the relation to the dynamic behavior and shock absorption of aluminum honeycombs.
As a result, very interesting behaviors of the in-plane compression process ware found and useful knowledge for development of honeycomb structures was obtained
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