旋转弯曲疲劳强度是抗裂纹扩展能力的判据。
The rotating bending fatigue strength is the criterion of resistance to propagation of hot cracks.
家轿后减振器活塞杆在进行旋转弯曲疲劳试验时出现早期断裂。
The piston rod of family sedan's rear snubber fractured duringearlier stage of rotary bending fatigue test.
作者就赫兹应力和旋转弯曲应力联合作用下的接触疲劳进行实验研究。
Experiments of contact fatigue under the action of combined stresses-Hertsian stress and rotating bending stress were carried out.
利用旋转弯曲疲劳试验方法研究了三种重载齿轮钢渗碳后的疲劳性能。
Fatigue properties of three case hardening steels for heavy duty gears after carburization were investigated by means of rotating bending fatigue tests.
根据应力场强法，分析了旋转弯曲疲劳极限与扭转疲劳极限之间的关系。
Through the stress field intensity approach, the relationship between the rotary bending fatigue limit and torsion fatigue limit was studied.
用旋转弯曲疲劳试验机试验了不同稀土含量对几种结构钢疲劳性能的作用。
The effect of RE on fatigue behaviours of structural steels was investigated with a rotating bending fatigue machine.
对多种碳素钢在拉伸压缩和旋转弯曲负载下的微小裂纹扩展速率进行了研究。
A study has been done over the small crack growth rate for kinds of carbon steels under push pull and rotating bending.
过盈连接部件在旋转弯曲载荷下，易于在接触区域产生微动损伤，降低构件的使用寿命。
The shrink-fit components usually suffer fretting damage in the contact surface under rotating bending load, which remarkably reduce the life of the components.
本研究进行了渗硼试样的拉伸、多次冲击以及旋转弯曲疲劳试验，并与未渗硼试样进行比较。
In the present study, tensile and repeated impact as well as rotated-bending fatigue tests were carried out.
结果表明，该轴断裂是由于轴表面存在焊接缺陷，在旋转弯曲应力作用下产生低应力疲劳开裂。
The results showed that the weld detects on the surface of the axle was the reason to cause low stress fatigue under rotation bending stress which finally lead to the fatigue cracks on the axle.
然后测量涂层和基体的硬度，并通过采用旋转弯曲疲劳试验比较涂层试样与未涂层试样的疲劳强度。
Then hardness of coatings and substrate was measured. By means of bend-rotation fatigue tests, fatigue strength of coating and uncoating specimens was compared after hardening and tempering.
本文介绍了用于该试验的径向冲击试验机、扭转疲劳试验机、旋转弯曲疲劳试验机和径向载荷疲劳试验机的结构形式及性能特点。
This paper presents the structural features and characteristics of the radial impact tester, torsional fatigue tester, rotary bending tester and radial load tester used for the tests.
对两种晶粒尺寸的中碳钢光滑试样进行了旋转弯曲疲劳试验；应用复型技术监测了短裂纹形成与扩展过程，研究了晶粒尺寸对短裂纹行为的影响。
The process of crack initiation and propagation was observed through replication, and the effect of grain size on the behaviour of short fatigue cracks was studied.
对两种晶粒尺寸的中碳钢光滑试样进行了旋转弯曲疲劳试验；应用复型技术监测了短裂纹形成与扩展过程，研究了晶粒尺寸对短裂纹行为的影响。
The process of crack initiation and propagation was observed through replication, and the effect of grain size on the behaviour of short fatigue cracks was studied.
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