| 1. | A new expression of fatigue crack propagation velocity 一种带可靠性的疲劳裂纹扩展速率表达式 |
| 2. | Standard test method for fatigue crack growth rates of metallic materials 金属材料疲劳裂纹扩展速率试验方法 |
| 3. | Approximate calculation of crack propagation rate of metal corrosion fatigue 金属腐蚀疲劳裂纹扩展速率的近似计算 |
| 4. | Fatigue crack growth rate of rotor steel under the condition of subcritical temperature 亚临界温度条件下转子钢疲劳裂纹扩展速率 |
| 5. | The fining grains of al - l % si could accelerate the fatigue crack propagation from the near threshold zone to paris zone 随着疲劳裂纹扩展速率从近门槛值区向paris区过渡,细小的a ( a1 )晶粒会加速疲劳裂纹的扩展。 |
| 6. | Increase of fatigue crack growth rates of 316l at elevated temperature mainly results from the drop of material intensity and elastic modulus 由于温度升高316l的弹性模量和强度下降,因此奥氏体材料疲劳裂纹扩展速率随着温度升高而提高。 |
| 7. | ( 3 ) the crack growth rates of 16mnr at 150 and 300 are lower than those at room temperature and 425 . the crack growth rate at 425 is highest 铁素体材料16mnr在150和300的疲劳裂纹扩展速率比常温和425时低, 425时疲劳裂纹扩展速率最高。 |
| 8. | Test results showed that the fatigue crack propagation rare increased with increasing the pre - tension deformation degree , especially at the near threshold section 结果表明:随著预拉伸变形量的增加,疲劳裂纹扩展速率提高,尤其是在裂纹扩展的近门槛区。 |
| 9. | By an example , each parameters are randomized in the paris formula , and the propagation life of fatigue of the structure is prognosticated on the presented reliability 通过算例,将疲劳裂纹扩展速率公式中的各个参量全部随机化,并预测构件在给定可靠度下的疲劳裂纹扩展寿命。 |
| 10. | Besides , it may be more important that the fcp equation developed in this study can be applied to predict the fcp curves , and agree well with test results 文献中实验结果的再分析,进一步客观地证明了上述疲劳裂纹扩展速率表达式。而且,更加重要的是,还可利用该式预测材料的疲劳裂纹扩展速率。 |