Crack propagation in largely deformed viscoelastic films
| Project/Area Number |
21540377
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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 |
Mathematical physics/Fundamental condensed matter physics
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| Research Institution | Tohoku University |
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Principal Investigator |
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2009: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 破壊 / 大変形 / 亀裂 / 振動 / 粘性流体 / 粘弾性 / パターン形成 / ゴム薄膜 / 不安定性 / 薄膜 |
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| Research Abstract |
We designed an experimental system of the crack of thin rubber films coupled with viscous fluid layer to realize slow fracture compared to sound propagation. We found a transition in the crack dynamics exhibiting oscillatory to straight patterns. Based on numerical simulations as well as experiments, we concluded that such oscillating patterns can not be explained within the framework of the conventional linear fracture mechanics and nonlinear elasticity due to largely deformation of rubber films is the essential factor.
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Report
(4 results)
Research Products
(11 results)
