| Project/Area Number |
16K06480
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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 |
Structural engineering/Earthquake engineering/Maintenance management engineering
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| Research Institution | Hakodate National College of Technology |
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Principal Investigator |
Watanabe Chikara 函館工業高等専門学校, 社会基盤工学科, 教授 (90249714)
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| Research Collaborator |
OSANAI Ryouga
KANAZAWA Yudai
YONEYA Yutaka
KANAHAMA Tohya
HORI Ohka
NARITA Yusuke
Munkhsukh Otgonbat
IMABUCHI Tohru
KITORA Kaito
MATSUMOTO Yuui
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
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| Keywords | 複合材料 / 異方性積層板 / zig-zag理論 / zig-zag変位 / 厚板理論 / 自由振動 / 固有振動数 / モード分類 / 構造解析 / 積層構造 / 面外応力 / ZIG-ZAG理論 / ハイアラーキ要素 |
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| Outline of Final Research Achievements |
In this study, an improved ZIG-ZAG theory was developed to construct an effective structural analysis method for composite materials such as fiber reinforced plastic (FRP). In this improved ZIG-ZAG theory, highly accurate ZIG-ZAG displacements can be obtained for anisotropic laminates. Furthermore, even if it is applied to an isotropic plate, displacements and stresses can be calculated with high accuracy. Using hierarchical continuum elements (hierarchical model) based on this improved ZIG-ZAG theory, structural analysis precisely modeled as a three-dimensional continuum has become possible.
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| Academic Significance and Societal Importance of the Research Achievements |
本研究の改良ZIG-ZAG理論では，薄板から厚板までの異方性積層板に対して高精度なZIG-ZAG変位が得られるとともに，等方性平板に適用しても高精度の変位と応力が計算できる．すなわち，従来のZIG-ZAG理論の適用性を大幅に拡張し，複合材料部材のみならず，鋼部材やコンクリート部材にも適用可能であり，土木構造特有の厚板領域でも精度の良い変位と応力を計算できる理論モデルを開発した．
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