| 1. | Shielding effect at ni - base bicrystals grain boundary 一种镍基双晶材料疲劳裂纹扩展效应 |
| 2. | Conduct material fatigue testing and thermal stress test 进行材料疲劳测试和热应力测试。 |
| 3. | Preliminary investigation of fatigue life probability distribution for two domestic turbine disc materials 两种国产涡轮盘材料疲劳寿命概率分布规律初探 |
| 4. | Effect of temperature on the fatigue crack growth rate of austenitic material is more evident than that of bainite material 温度对奥氏体材料疲劳裂纹扩展率的影响更大。 |
| 5. | Get the broad sense method of the materials fatigue reliability according to the basic theory of probability fatigue 并利用概率疲劳的基本理论,得出材料疲劳可靠性估计的广义方法。 |
| 6. | Tests relating to pavements . determination of fatigue resistance on material bound with hydraulic binders . part 1 : flexural fatigue test with constant stress 路面试验.水硬性粘结剂材料疲劳性能测定.第1部分:恒定应力挠性疲劳试验 |
| 7. | 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。 |
| 8. | When comparing the electrical resistance with some other common damage parameters , the damage evolution law expressed by them is obtained . and the relationship between resistance and fatigue cycle numbers has been studied essentially 将电阻参量和其它一些常用损伤参量进行比较,得到其它参量表示的损伤演变规律,分析了电阻随材料疲劳循环次数变化的本质。 |
| 9. | Study the broad sense description and the estimation of the equation parameter of p - s - n curve . study the estimation method of the reliability range of the materials fatigue life under given reliability correspond to different stress level 并利用数理统计理论,探讨p - s - n曲线的广义描述方法, p - s - n曲线方程参数的估计方法,以及对应不同应力水平下的材料疲劳寿命在给定置信度下的置信区间估计方法。 |
| 10. | The results showed that the concentration , size and shape of si particles in altilola , ast101a and zl101 had some effects on the fatigue threshold , and the irregular shaped brittle phase of fe intermetallics caused the fatigue threshold decreased 结果表明, ast101a 、 aiti101a和zl101中51粒子的浓度、大小和形貌对材料疲劳门槛值的高低有一定的作用,脆性的富fe相是疲劳门槛值降低的另一个重要原因。 |