| Budget Amount *help |
¥15,210,000 (Direct Cost: ¥11,700,000、Indirect Cost: ¥3,510,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2019: ¥6,890,000 (Direct Cost: ¥5,300,000、Indirect Cost: ¥1,590,000)
Fiscal Year 2018: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
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| Outline of Final Research Achievements |
Recently, the researches and developments on cellular solids that control their microstructures and yield the new functions and properties have been activated, and the model representing well the nonlinear mechanical properties of cellular solids with large deformability is essential to reach the goal. This study focused on the connections (joints), which constitute the framework of a cellular solid, and tried to reveal the unusual deformation mechanism such as the dynamic deformation transition and negative Poisson ratio by analyzing them in static and dynamic manners. As a result, we succeeded to develop the mathematical models of periodic structure in order to represent the deformation mechanisms mentioned above. We then could promote the new ideas for the viscoelastic model switching its stiffness according to a loading rate and the edge-shared tetrahedral units with low-frequency auxetic vibration, these findings of which open the design of a next-generation material.
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