When hydride reorientation takes place, there is a threshold stress concerned with the number of temperature cycling.
随着应力增大和温度循环次数增加，氢化物再取向程度也增大，但是氢化物发生再取向存在应力阈值。
A distribution function of two dimensional threshold is given for fatigue crack propagation. A two dimensional stress threshold interference model is set up.
本文给出二维疲劳裂纹扩展门槛值分布函数，建立二维应力—门槛值干涉模型。
The initially existing damage has apparently affected on wave stress propagation and stress distribution as long as its quantity exceeds a threshold value.
当初始损伤超过某临界值后会显著地影响应力波的波动范围和围岩应力分布；
They have a lower threshold for stress and seem to be more sensitive to it.
他们有一个较低的压力起点，似乎对压力更敏感。
It was found that 2618 aluminum alloy exhibits a higher creep stress exponent. The creep behaviors of the alloy can be described by using threshold stress.
试验结果表明：2618铝合金表现出较高的蠕变应力指数，在引入门槛应力后，该合金的蠕变行为可得到满意解释；
It was found that 2618 aluminum alloy exhibits a higher creep stress exponent. The creep behaviors of the alloy can be described by using threshold stress.
试验结果表明：2618铝合金表现出较高的蠕变应力指数，在引入门槛应力后，该合金的蠕变行为可得到满意解释；
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