fatigue cracking

Fatigue Crack occurs under repeated action of load, features map cracking with longitudinal crack ( generally deformation is not distinguished), and occurs mainly late in the service life of pavements.

荷载作用产生的裂纹主要是指荷载反复作用引起的疲劳裂纹。

Study on random wave force spectrum and structural fatigue cracking propagation

随机波浪力谱及结构件裂纹扩展研究

On Fractal Characterization as an Indicator of Rate of Propagation of Corrosion Fatigue Cracking of Chinese GC-4 Ultra-High Strength Steel

GC-4超高强度钢腐蚀疲劳断口分维特征的研究

The coke tower has been designed according to the requirements of fatigue vessel and measures to prevent the welding seam between skirt and external vessel from cracking and base screw bolt from loosening have been adopted.

按疲劳容器的要求设计该塔，采取措施防止裙座与筒体焊缝处出现裂纹和塔底座螺栓松动。

Study on Characteristic of Thermal Fatigue Cracking Damage of Wheel Casting Steel

车轮铸钢热疲劳裂纹损伤行为研究

The result shows that the cracking of the gear is fatigue cracking.

结果表明：齿轮的开裂属于疲劳断裂。

Experimental Research on the Threshold Value of Fatigue Cracking of High Strength Steel

高强度钢的疲劳裂纹门槛值实验研究

The results showed that tempered soft zone in harden zone case produced in process of discontinuous medium frequency induction hardening which has microstructure of tempered sorbite and low hardness and low fatigue limit were major reason to cause driven gear cracking.

结果表明，因中频淬火的不连续，使淬硬层出现了回火软区，组织为回火索氏体，降低了材料的硬度和疲劳极限，最终导致从动齿轮开裂。

In service, fatigue cracking initiated at the plating runout led to lug fracture.

在实际使用中, 在镀层的过渡段发生的疲劳裂纹会导致接耳断裂.

The stresses from the structural analysis are combined with the pavement distress models to predict the rutting and fatigue cracking of pavement, and compared with the measured distress.

接著将结构分析结果与破坏模式结合预测铺面在车辆反覆荷重所造成之车辙与疲劳龟裂，其结果亦与观测值作比较。

ANA says it will replace the engines on its fleet of Boeing 787s after a series of engine failures caused by corrosion and fatigue cracking of turbine blades.

全日空航空公司表示，由于涡轮机叶片出现腐朽和裂痕造成的一系列引擎问题，该公司将替换掉旗下所有波音787梦想飞机的引擎。

Fatigue cracking is one of the main failure mode of asphalt pavement.

疲劳开裂是沥青路面的主要破坏形式之一。

Corrosion Fatigue Cracking of In-service 4340 Steel Super High Pressure Pipe

在役4340钢超高压管的腐蚀疲劳开裂