The increase of hardness is the macroscopic expression of carbon and nitrogen behavior in fatigue process.
硬度的增加是疲劳过程中氮碳变化的宏观表现。
Based on the study of strength degradation of material in the fatigue process, a strength degradation model is proposed.
在研究疲劳过程中材料强度退化规律的基础上,建立了一个强度退化模型。
The superiority of this design over the conventional one will reveal itself in the studies on the mechanisms of crack initiation and growth in fatigue process under bending condition.
这种等应力试样在研究弯曲疲劳,尤其是在弯曲条件下研究疲劳过程中裂纹产生和扩展机理时,将显示出明显的优越性。
During the fatigue process, the formation of the main crack expends most of the whole fatigue life, and once the main crack forms, the crack propagates rapidly and fractures immediately.
疲劳过程中主裂纹的形成消耗了大部分的疲劳寿命,一旦主裂纹形成就快速扩展瞬间断裂。
For example, studies show that even brief periods of odorant stimulation produce transient reductions in receptors in the olfactory epithelium, a process termed "receptor fatigue".
例如,研究表明,即使是短暂的气味刺激也会导致嗅觉上皮细胞中受体短暂的减少,这个过程被称为“受体疲劳”。
The FAA is also in the process of drafting new rules to broadly address pilot fatigue and will consider the board's recommendations.
美国联邦航空局也在起草新的规定,以广泛地处理飞行员疲劳问题,并将考虑采纳委员会的建议。
As I did all along, I remained somewhat afraid of the process of dying, of increasing weakness and fatigue, of pain, of becoming less and less of myself as I got there.
我始终不畏惧死亡,不过我还是有点害怕死亡的过程,它让我变得虚弱、它让我体验到了疲倦和疼痛、它让我渐渐失去知觉。
Fatigue is an aging process that cannot be avoided, but weak points such as holes and joins can be reduced by using adhesives instead of rivets and bolts, and by casting wing skins in gigantic panels.
疲劳是一个无可避免的老化的过程,但是像开口和接头这样的薄弱的部位可以使用胶粘剂粘合来代替铆钉和螺栓,并且用大的板材来铸造机翼。
Fatigue of metals is an energy dissipation process. The main energy dissipation includes the internal friction and the stored energy.
金属疲劳是一个能量耗散过程,其中主要的能量耗散形式包括内耗热和储能。
The results showed that the muscle thickness increased nonlinearly in the 30s process of muscle fatigue.
试验表明在30秒的肌肉疲劳过程中,肌肉厚度会以非线性的方式增加。
The hydraulic fatigue performance test is the most fundamental trial in the development and production process of oil cooler.
在机油冷却器产品开发与生产过程中液压疲劳性能测试是最为基础的试验之一。
Linking Riveting Process Parameters to the Fatigue Performance of Riveted Aircraft Structure.
铆接过程参数与铆接飞机结构的疲劳性能的联系。
The fatigue and psychological exhaustion in sports is a complicated stress reacting process.
运动中的疲劳和心理耗竭是复杂的应激反应过程。
The effects of cyclic dry-wet process on the fatigue strength of the cement silt clay and the cement silt are researched by cyclic triaxial tests.
通过振动三轴试验,研究干湿循环过程对水泥改良粉质粘土和水泥改良粉土疲劳强度的影响。
CONCLUSION: tendon can adapt to the exercise training, and there is fatigue damage in tendon during this adaptation process.
结论:肌腱对运动训练可发生适应性改建,在此过程中伴随着疲劳性损伤发生。
The design process, the fundamental structure, the function parameters and the basic design principle of movable fatigue testing machine are presented in this paper.
本文论述了可移动式野外疲劳试验机的设计过程、基本结构、性能参数及基本设计原则。
Based on the static experiment mentioned above, the research of stable crack growth process of concrete under fatigue loads was carried out.
在上述静载试验基础上,进行了疲劳荷载作用下混凝土裂缝稳定扩展过程研究。
The cause of the fatigue failure is analyzed by actual measurement and FEM analysis. The reinforcement process methods and the design account for the fatigue failure are presented.
通过实际测量和有限元计算,分析了产生疲劳破坏的原因,提出了针对这种疲劳破坏的加固处理方法和在设计上应采取的措施。
Our research work confirm that, the filtration process improves not only the common mechanical properties of alloy but also the fatigue feature of the as-cast aluminium alloy.
研究工作证明:过滤工艺不仅可以提高合金的常规力学性能,而且可以提高铸态铝合金的疲劳性能。
Then the characteristics of frequency variation during the fatigue crack propagation process are simulated by three - dimensional dynamic finite element analysis.
并利用三维动态有限元模拟了点焊接头疲劳裂纹扩展过程中频率变化特性。
Thermal fatigue crack forming process of steel bonded carbide containing 35% WC by the action of thermal stress has been observed time and time again.
对含有35 %WC的钢结硬质合金在热应力作用下热疲劳裂纹形成过程进行了反复观察。
Heat fatigue failure mechanism of the die casting dies during the process of die casting were analyzed, and the influence of optimizing process control on die life of die casting were discussed.
分析了压铸过程中模具的热疲劳失效机理及其影响因素,讨论了优化压铸过程控制对模具寿命的影响。
The process to determine the distribution of the critical fatigue stress is also presented.
并给出了确定临界疲劳应力分布的过程。
In addition, the static analysis, modal analysis, transient analysis during its working process and fatigue analysis of the rear arm of the type of motorcycle were done.
另外还对该摩托车的后摆臂进行了静力分析、模态分析、工作过程瞬态分析和疲劳强度分析。
The fatigue damage of materials is an unsteady process and is difficult to be expressed accurately by the use of traditional mathematical functions.
材料的疲劳损伤是一非稳态过程,难以用传统的数学函数准确表达。
The cutting tool was characterized by intercrystalline fracture attributed to fatigue and partial cleavage fracture in the machining process.
聚晶金刚石刀具在加工过程中的磨损机理主要表现为具有疲劳磨损特征的沿晶断裂及局部解理断裂。
Using the side frame of the Z8A bogie as an example, this paper introduces the process of fatigue life analysis of a component based on the finite elements technology.
以转8a型转向架侧架为例,介绍了有限元技术应用于构件疲劳寿命分析的过程。
The process of thermal fatigue crack propagation on the surface of steel bonded carbide GJW35 under the action of thermal stress has been observed.
观察了在热应力作用下gjw35钢结硬质合金表面热疲劳裂纹扩展过程。
The process of thermal fatigue crack propagation on the surface of steel bonded carbide GJW35 under the action of thermal stress has been observed.
观察了在热应力作用下gjw35钢结硬质合金表面热疲劳裂纹扩展过程。
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