| Project/Area Number |
19760070
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Materials/Mechanics of materials
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| Research Institution | Kobe University |
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Principal Investigator |
FUJIMOTO Takehiro Kobe University, 大学院・海事科学研究科, 准教授 (60314514)
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| Project Period (FY) |
2007 – 2009
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| Project Status |
Completed (Fiscal Year 2009)
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| Budget Amount *help |
¥3,560,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2009: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2008: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2007: ¥2,000,000 (Direct Cost: ¥2,000,000)
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| Keywords | 破壊力学 / 延性破壊挙動 / 三点曲げ破壊試験 / き裂面観察 / 粗さ測定 / 三点曲げ破壌試験 / 弾塑性破壊力学 / プロセスゾーン / 結晶塑性理論 / ボイド成長モデル / 移動有限要素法 / 弾塑性破壊クライテリオン |
|---|
| Research Abstract |
In fracture accidents of structure, crack propagation caused with deformation of industrial component materials. The nonlinear fracture is defined as the fracture with distinct permanent deformation. Because behavior of nonlinear fractures are very complex, conventional fracture mechanics cannot be applied to some of these nonlinear fractures. In this study, to establish the criterion for the nonlinear fracture, behaviors in crack-tip vicinity are measured by using the experimental observations and numerical simulations.
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