| Project/Area Number |
24656533
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Naval and maritime engineering
|
|---|
| Research Institution | Osaka University |
|---|
Principal Investigator |
|
|---|
| Project Period (FY) |
2012-04-01 – 2014-03-31
|
| Project Status |
Completed (Fiscal Year 2013)
|
| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2013: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2012: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
|
|---|
| Keywords | 疲労 / 塑性 / き裂 / 数値解析 / 残留応力 / 数値シミュレーション / 弾塑性 / 寿命評価 |
|---|
| Research Abstract |
Predicting the mechanical fatigue phenomena of materials subjected to cyclic stresses, the mechanisms on generation and accumulation of inelastic deformation has to be clarified. In this study, numerical study based on both macro- and crystal-plasticity FE modeling are conducted to evaluate the mechanical responses under cyclic loading condition. Then, the effects of inclusions on the fatigue behavior at the stress level lower than the yield stress, i.e macroscopically elastic condition, was simulated and compared with the experimental result of a carbon steel.
|
