Abstract
The total plastic strain energy of a stationary crack per cycle was calculated through 2-D elastic plastic finite element analysis under constant amplitude fatigue loading, and the nonlinear relation of total plastic strain energy with stress intensity factor range was obtained. With the energy balance concept, the relation between the crack growth rate and the total plastic strain energy per cycle was established. So a prediction model of fatigue crack growth life based on the total plastic energy was proposed, and the predictions of the model are in good agreement with the experimental results of the center-crack panel.
| Original language | English |
|---|---|
| Pages (from-to) | 469-471 |
| Number of pages | 3 |
| Journal | Zhongguo Jixie Gongcheng/China Mechanical Engineering |
| Volume | 19 |
| Issue number | 4 |
| State | Published - 25 Feb 2008 |
Keywords
- Crack growth rate
- Plastic strain energy
- Prediction of crack growth life
- Stress intensity factor
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