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- bending fatigue limit 弯曲疲劳极限
- The fatigue limit of 45 steel has increased by a fac-tor of 55 and 74%. 45钢的疲劳极限分别提高55%25和74%25。
- The results showed that the bending fatigue property of LLDPE was improved with 5% of EPDM. 研究结果表明 ,5 %25的三元乙丙橡胶即可大幅度提高LLDPE的弯曲疲劳性能 ;
- The bending fatigue strengths of ADI gears treated with different processes were test and compared. 对各种状态的奥贝球铁齿轮的弯曲疲劳强度进行了试验研究。
- The bending fatigue properties and fractography of normalized tufftrided 45 steel were analyzed. 对45钢正火态软氮化处理前后的旋转弯曲疲劳性能及其断口进行了定量和电镜分析。
- The piston rod of family sedan's rear snubber fractured duringearlier stage of rotary bending fatigue test. 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。
- Compressive residual stress are the main factor in the increase of torsion fatigue limit. 喷丸后扭转疲劳极限提高的主要原因是残余压应力的作用。
- Abstract： The piston rod of family sedan’s rear snubber fractured during earlier stage of rotary bending fatigue test. 摘 要： 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。
- At present,tuning-folk resonance plate structure is common used in crankshaft bending fatigue test bench in domestic diesel engine industry. 目前,国内柴油机行业普遍使用的曲轴弯曲疲劳强度试验台架,均采用音叉共振板结构。
- It is proved that plain concrete does not have a fatigue limit while for FRC it is uncertain. 结果素混凝土不存在疲劳机限；纤维混凝土是否存在确定的疲劳极限值仍属未知；
- Compressive residual stress are the main factor in the increase of torsion fatigue limit . 喷丸后扭转疲劳极限提高的主要原因是残余压应力的作用。
- With strength increases, the potential for further improving bend fatigue strength declined, while that of bend fatigue life improves. 随着结构强度的提高，弯曲疲劳强度的提高幅度呈下降趋势，但疲劳寿命的提高幅度呈上升趋势。
- Tension and bending fatigue tests were carried out to investigate the fatigue behavior of polymethyl methacrylate for edge attachment element at different temperatures. 摘要研究了有机玻璃边缘连接元件在不同温度下的拉伸和弯曲疲劳特性。
- Use multiple seizing wires as belt core to raise wire bending fatigue strength greatly, sheathed good weatherproof rubber to have realized maintenance free fuction. 用多根细钢丝绳作为带芯,大幅度提高了钢丝绳弯曲疲劳强度。外包耐候性优良的橡胶，实现了免维护功能。
- By strengthening under low amplitude loading,bend fatigue strength and life of gear teeth can be increased by 3.97 and 109 percents,respectively. 经过低幅载荷强化;该齿轮轮齿的弯曲疲劳强度提高了3.;97%25;弯曲疲劳寿命提高了109%25。
- Hard rolling at the transitional section could improve the surface hardness and induce compressive residual stress, therefore to extend it's rotary bending fatigue life. 在过渡圆角处进行表面滚压可提高表面强度及压应力，以延长活塞杆旋转弯曲疲劳寿命。
- Results showed that the fatigue behavior of the YW-1 adhesive beared a resemblance to that of the metal material and the fatigue limit value of the copper oxide-phosphate inorganic adhesive was equal to 41 25% of the static strength value. 结果表明 :磷酸氧化铜无机胶的抗拉疲劳特性与金属材料的特性较相似 ,该无机胶的抗拉疲劳极限为其静拉伸剪切强度的 41 2 5%25。
- After experimental data processing, material's viscousness coefficient was acquired and a new method to determine fatigue limit by the threshold of plasticity energy dissipation was given. 通过对试验数据的分析，求出了材料的黏性系数，给出了利用塑性能耗的起点确定材料疲劳极限的方法。
- The result indicates that the improvement of the fatigue limit is due to the nano-crystallization and severe plastic deformation in the surface layer induced by high-energy shot peening. 结果表明,高能喷丸后其表层组织发生严重塑性变形并实现组织纳米化,是提高弯曲疲劳寿命的主要原因。
- Because the HMA fatigue limit is the theoretical base of perpetual pavement design, to grasp the strain distribution and strain action of HMA layer is key for perpetual pavement design. 摘要沥青混合料疲劳极限的存在是永久路面结构设计的主要理论依据，因此掌握沥青层底应变的分布和应变行为规律是永久路面设计的关键。
