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- The nucleati-on, growth and connection of fatigue cracks were photographed. 拍摄了热疲劳裂纹的形核、成长、连接过程。
- The flaking do increases and undulates the fatigue crack growth rate. 钢中的白点能增加疲劳扩展速率并使扩展速率发生波动。
- The fractography of the fatigue crack initiation displayed cleavage f... 裂纹形成的断裂为穿晶解理机制,预应变可导致更多的二次裂纹。
- At least 60 bridge sites developed fatigue cracks as a result of out-of-plane distortion in a small gap. 至少有60座桥上出现的疲劳裂纹是由于小间隙处的面外变形引起的。
- For the multiaxial proportional loading, the dispersion degree of fatigue cracks was low. 在多轴比例加载条件下，裂纹分布的分散性较小。
- No evidence of fatigue crack extension was detected in the silver Memorial Bridge nor the Fremont Bridge. 在西尔费纪念桥和弗里蒙特桥都没有检查出疲劳裂纹扩展的证据。
- Subsequent growth of the fatigue cracks led to final fracture of the solder interconnects. 疲劳裂纹随后的生长导致了焊点的最终断裂。
- As a result of repeated thermal cycling, fatigue cracks developed in the solder interconnects. 随着热循环周数的增加，焊点中出现疲劳裂纹。
- In the high rowth-rate region the rate propagation of fatigue cracks isgoverned by the striation growth mechanism as ell as by the dimple mechanism. 在高速率区;裂纹扩展速率行为是由疲劳条纹生长机制和韧窝机制所控制.
- The observations of fracture surface under SEM found that fatigue cracks initiation area exists mostly in surface and in subsurface. 扫描电子显微镜分析发现,疲劳裂纹源的位置主要呈现为表层和次表层两种情况。
- The fatigue cracks initiate and propagate both in a transgranular manner for all the total strain amplitudes under consideration. 碳化物可作为障碍,阻碍疲劳裂纹的扩展,且为主要的二次裂纹策源地;
- On the sintering friction material, heat fatigue cracks were not found in steel back coat of Ni or coat of Ni followed . 烧结摩擦材料，无论是采用镀镍还是镀铜再镀镍的钢背都没有在镀层处发现热疲劳裂纹。
- The results show that thermal fatigue cracks initiate at graphite cusps and in the pearlitic matrix and eutectic carbide. 结果表明，热疲劳裂纹在石墨尖端处、珠光体基体及共晶碳化物中萌生；
- The serious overloading of vehicles and the shortcomings of highway surface designs have left many highways in early fatigue cracks and tracks. 摘要近年来重载交通的日益严重和当前路面结构设计存在缺陷使得很多公路出现早期疲劳开裂和车辙现象。
- The effect of shot peening on the initiaton and propagationof short fatigue cracks from surfaces in a medium steel was explored. 试验表明：喷丸延迟了裂纹萌生时间并增长了等幅扩展寿命；
- By the influence of the environmental loads and the material characters, propagations of mechanical components' fatigue cracks usually have stage act. 在外界载荷和构件内部材料特性的共同作用下,机械构件的疲劳裂纹的扩展行为往往具有阶段性,在不同的阶段内伴随不同的行为特性。
- The fractography of the fatigue crack initiation displayed cleavage facet and more second cracks after pre-training. 裂纹形成的断裂为穿晶解理机制，预应变可导致更多的二次裂纹。
- The fatigue cracks initiate in a intergranular manner and propagate in a transgranular manner, which stages are separated by secondary cracks. 实验结果表明疲劳载荷下的橡胶裂纹首先沿片晶结合面萌生，然后穿晶扩展破坏，且存在次生裂纹。
- N. Shlyannikov, Z.B. Kuang, F.P. Yang (2004), Surface fatigue crack growth behavior, Russian journal Power Engineering Problems. 杨凤鹏，林卓英(2004)，表面裂纹疲劳扩展的试验，北京科技大学学报.
- The behaviours of fracture, fatigue and fatigue crack propagation in a cast magnesium alloy are systematically studied. 本文系统地研究了铸造镁合金的断裂;疲劳和疲劳裂纹扩展性能.
