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- rock fatigue failure 岩石疲劳破坏
- The results indicated that the fracture mode is the fatigue failure. 结果表明，其断裂形式为弯曲疲劳断裂。
- The surface spalling and fatigue failure may occur after a long time of service, during wheel-rail rolling contact. 摘要钢轨钢的接触疲劳一直为铁路运输部门和研究机构所重视。
- By the action of high roatry speed,excentric shaft connection intensifies the fatigue failure of drill tool. 为了达到较好的防斜目的,必须增大钻进时钻头的转速,在高转速的作用下,偏轴接头加剧了钻具先期疲劳失效。
- But the study on the rolling contact fatigue failure mechanism of super hard material coati-ngs is in grope. 但是目前对于超硬涂层材料滚动接触疲劳失效机理的研究还处于探索之中。
- High compressive-shear stress beneath the contact point of ball bearing is the main reason for its fatigue failure. 滚珠轴承接触点附近的高压剪应力是引起轴承疲劳破坏的原因。
- Thermal fatigue. A type of fatigue failure wherein the cyclic stresses are introduced by fluctuating thermal stresses. 热疲劳:一种疲劳失效类型,循环应力是由于交变热应力引起的。
- Alternating stress produced by alternating dynamic ice force evidently results in the partial fatigue failure . 交变冰力引起的结构交变应力必将导致结构的局部疲劳损伤。
- The strongest spring leads to fatigue failure caused by excessively high stress. 即使是强度最大的弹簧;也会因应力过大而导致疲劳损坏.
- Conclusion Bone structures in fretting wear will induce fatigue failure and this will... 结论骨组织在微动过程中将发生疲劳破坏,从而造成假体松动。
- Based on real time CT testing, primary testing study of fatigue failure and deformation mechanism of red sandstone has been completed under uniaxial compression condition. 摘要基于对裂隙岩石的细观CT试验，对含有单一裂纹的贵溪红砂岩在单轴疲劳荷载作用下的损伤扩展机理和演化过程进行了初步的试验研究。
- In this article, some correction measurements are advanced in order to decrease the pitting erosion and fatigue failure and improve the service life of the bearings. 提出了相应的改进措施，以减少点腐蚀及疲劳失效现象的发生，提高轴承的使用寿命。
- Mechanisms of fatigue failure of wire rope working with sheave are related to safety, reliability and economy of Wire rope transmission. 钢丝绳绕滑轮工作的疲劳损伤机理问题，关系到钢丝绳传动的安全性、可靠性和经济性。
- Failure analysis of side rail box imitating chief beam of metallurgy crane was studied. Cause of fatigue failure and improving method were given. 介绍了冶金起重机金属结构偏轨箱形模拟主梁的疲劳失效分析研究结果,提出疲劳失效的原因及改进措施。
- It revealed that alternating stress in long time cause the bolt fatigue failure, meanwhile the failure process was also effected by superheating steam. 认为主要原因是螺栓在长期服役中受交变应力引起疲劳失效所致。过热蒸汽介质对疲劳失效有影响。
- Hence the life of an antifriction bearing is measured by the number of shaft revolutions that occur prior to fatigue failure. 因此一台减摩轴承的使用寿命是在疲劳故障之前通过计算其轴转速测得的。
- The transient flow in subsea pipeline induces the riser system vibration, then causes the system fatigue failure and reduces pipeline life. 摘要海底油气管道中流体的不稳定流动会诱发立管系统的振动，使立管系统弯头部位发生疲劳破坏，影响管道的使用寿命。
- Peak stresses are the highest stresses in the region under consideration and are responsible for causing fatigue failure. 峰值应力是在所关注区域的最高的应力，是造成疲劳失效的的原因。
- The tests show that the bigger con-centration gradient makes the carburized layer exfoliate and fatigue failure go ahead. 结果表明，渗层碳浓度梯度过大会导致局部渗碳层剥落，使疲劳破坏提早；
- Abstract： The analysis of materials and fracture appearance shows that the cracks on the hanger of ropeway are caused by fatigue failure. 摘 要： 通过材料性能检测、金相组织检验和断口形貌分析，确定了索道吊架失效是疲劳破坏。
