| 1. | Additional stress cycles may result under some condition .
在某些情况下也可能产生附加应力循环。 |
| 2. | This would result in about 1. 5 million variable amplitude stress cycles, assuming each truck produces one stress cycle .
假定一辆卡车产生一次应力循环，这将产生15百万次变幅应力循环。 |
| 3. | This would result in about 1 . 5 million variable amplitude stress cycles , assuming each truck produces one stress cycle
假定一辆卡车产生一次应力循环，这将产生1 5百万次变幅应力循环。 |
| 4. | It can simulate the complete stress cycle including the initial stress in the assembly process , by composing stresses of two stages
同时通过使用各阶段应力合成的方法，能较好的模拟考虑钢板弹簧装配阶段预应力在内的完整应力循环。 |
| 5. | However , the stud welding roots in the negative moment region of the beam are often subjected to the joint action of shear stress cycling of the studs and tensile stress cycling of steel girder flanges
但在负弯矩处栓钉焊趾往往承受栓钉剪应力循环和钢梁翼缘拉应力循环的共同作用。 |
| 6. | Based on the predicting model of effective stress concentration factor , estimating methods of s - n curve for welded steel structures are set up under symmetrical and unsymmetrical stress cycle respectively
本文以有效应力集中系数预测模型为基础，分别建立了对称循环和非对称循环时焊接钢结构s - n曲线的理论预测方法。 |
| 7. | By introducing the concept of the worst - case notch , the theory prediction model of the effective stress concentration factor for welded steel structures are established for symmetrical and unsymmetrical stress cycle respectively
本文在引入“最坏切口”概念的基础上，分别建立了对称循环和非对称循环时焊接钢结构有效应力集中系数的理论预测模型。 |
| 8. | In this paper , the linear accumulative damage theory commonly used for calculation of the fatigue of variable amplitude stress is used to assess the fatigue of the same part of the structure due to the two kinds of stress cycling and the assessment formulae for the fatigue of the stud welding roots in the negative moment region are also provided
引入通常用于计算变幅应力疲劳的线性累积损伤理论，对2种应力循环引起的结构同一部位的疲劳进行评定，给出组合梁负弯矩区栓订焊趾疲劳评定公式。 |
| 9. | Investigations showed that one of the most important characteristics of pearlitic materials is the decrease of ratcheting rate , the plastic shakedown capability , and the memory and recovery of the accumulated plastic strain under asymmetrical stress cycles . it was found that the interaction between phases plays an important role in the mechanical behavior of pearlitic materials , such as wearability and contact fatigue life
珠光体材料的重要特性之一是在非对称应力循环下循环蠕变速率的减缓并趋于塑性安定以及材料对循环蠕变史的记忆与恢复；同时珠光体材料的宏观力学性能与其细观结构密切相关，在很大程度上取决于珠光体材料的微结构及其相互作用。 |
