Results show that the smaller the grain size is, the higher the fatigue limit is.
结果表明，晶粒尺寸越小，渗碳钢的疲劳极限越高。
The fatigue limit of Ti-Ni SMA spring could be efficiently increased by shot-peening.
喷丸处理可有效提高该弹簧的疲劳寿命。
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。
The induction quenching realizes imitated stress strengthening, raises fatigue limit and se…
感应淬火实现了仿应力强化，提高了扭杆的疲劳极限和使用性能。
The fatigue limit of condenser copper tube was reduced by working condition which aggravated the spread of crack.
冷凝器铜管的工作环境使疲劳极限大为降低，加剧了疲劳裂纹的扩展。
Through the stress field intensity approach, the relationship between the rotary bending fatigue limit and torsion fatigue limit was studied.
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。
On the base of experimental data, a new fatigue limit measuring method of steel bar in concrete based on remained strength has been presented;
在分析了疲劳损伤后未锈钢筋静强度试验数据的基础上提出了基于剩余强度的混凝土用钢筋疲劳极限的测定方法；
This approach offers the value of fatigue limit with survival rate index, hence it may be used as a new criterion to estimate the rail quality.
由于升降法提供了具有存活率指标的疲劳极限值，可以为评定钢轨的质量提供新的指标。
Abstract :For obtaining fatigue limit and dealing with censored data, the "pair-life-weighted" and "censored life approximation" methods were proposed.
针对概率疲劳统计中疲劳极限与定时截尾数据的处理问题，提出了求解疲劳极限的“配对寿命加权法”及求解疲劳曲线的“截尾寿命近似法”。
Bending fatigue limit stress is still short of reliable data for gear of domestic material in gear design mostly used are the data offered from ISO6336.
在齿轮设计中，国产材料齿轮的弯曲疲劳极限应力仍然缺乏可靠的试验数据，大多是沿用ISO 6336提供的数据。
The recurrence formula of the fatigue damage model is derived under multilevel loading, and the loading case below the fatigue limit is also considered.
然后推导出该疲劳损伤累积模型在多级加载下的递推公式。
Both the measured results of the cyclic stress-strain curves of three kinds of rebars and their estimated intervals of fatigue limit are listed in the paper.
列出了三种钢筋循环应力应变曲线的实测结果和疲劳极限的估值区间。
The fatigue function test is the one that to examine resist burst function on the change force. It's basis engineering component design which the fatigue limit by test.
疲劳性能试验检验材料在交变载荷作用下抵抗破断能力的一种试验，其试验的疲劳极限作为工程构件的设计依据。
By using the nonlinear cumulative fatigue damage model considering the influence of the fatigue limit and the cyclic stress amplitude, the remaining life formula of the.
获得了用电阻变化测量疲劳损伤的公式，应用计及疲劳极限和循环应力幅影响的非线性累积疲劳损伤模型，给出了金属材料疲劳损伤的剩余寿命预测公式。
The predicted valued of the fatigue limit of crack initiation the fatigue limit of fracture, and the non-propagating crack length agreed well with the experimental values.
包括裂纹的萌生极限、断裂极限以及停止扩展裂纹长度的预测值与实验结果吻合。
The fatigue limit and fatigue performance parameters of material were obtained by empirical formula. The fatigue life elementary evaluation of solar cell module was finished.
采用经验公式获得材料的疲劳极限和疲劳性能参数，完成了太阳电池组件疲劳寿命的初步评估。
The primary cause of breakage is that the dynamic stress exceeded the allowable fatigue limit of the beam, and another cause is that the structure of the beam is unreasonable.
通过计算证明引起断裂的根本原因是动应力超过了梁的许用疲劳极限，另一原因是梁的结构不合理。
Compared with normal rods, the carbon fibre coiled rod behaves much more advantages, such as lighter weight, better elasticity, resisting corrosion, higher fatigue limit, etc.
碳纤维连续抽油杆与普通抽油杆相比具有质量轻、弹性好、抗腐蚀、耐疲劳等优点。
Load spectra are important basis on which the classification of cranes, the experimental study of fatigue limit of the crane framework, and the evaluation of its life limit are based.
载荷谱是起重机分级、结构疲劳强度试验研究和寿命估算的重要依据。
Because of the interaction of external loads and corrosion, the reliability index decays very quickly. And fatigue limit-state will take control of the safety of the cables and Bridges.
在疲劳荷载、腐蚀共同作用下，拉索的可靠指标下降速度很快，疲劳极限状态对斜拉索及斜拉桥的安全起控制作用。
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。
Using present bending fatigue limit data of gear tooth and other materials of gears, the calculating method of re liability is proposed for bending strength of gear tooth st steady condition.
利用现有齿根弯曲疲劳极限应力数据及其它齿轮资料，提出了稳定工况下齿轮齿根弯曲强度可靠度计算方法。
The method has considered the effect of difference in material hardness on the fatigue limit, which causes the shaft diameter design to become different depending on heat treatment difference.
该方法考虑了材料硬度对疲劳极限的影响，使半轴杆径设计随热处理方法不同而有所差异。
On the basis of fatigue test under high-low two stresses loading, the paper testifies that the equivalent damage lines do not parallel each other and tend to converge slightly over the fatigue limit.
本文根据高低二级应力作用下的疲劳寿命试验，验证了等损伤线互不平行且向下汇聚。
But steel alloys subjected to cyclic stress levels below their endurance limit rarely fail as a result of fatigue.
但是在钢铁合金的耐用度限制下，作为疲劳的结果，它们经受周期压力级别很少失灵。
Fatigue damage estimation of the tendons was made using fracture mechanics approach, establishing the fracture crack growth rate model and limit state equations for failure modes.
疲劳寿命的计算采用断裂力学方法，建立疲劳裂纹扩展模型和失效模式的极限状态方程。
The side-rolling resistant torsion bar made of this steel exhibits high fatigue life span and elastic limit.
采用该材料制造的抗侧滚扭杆具有高的疲劳寿命和高的弹性极限。
It should be noted that the values provided in the product tables for load and speed ratings as well as for the fatigue load limit are heavily rounded.
注意，产品列表中所提供关于负载、速度级别及疲劳负荷限值数字均已四舍五入。
This testing system use microcomputer-control, by designing the hardware and software, to carry out the testing of fatigue-limit of crankshaft, and data process controled automatically.
该系统利用微机控制，通过硬件控制系统设计和软件设计，实现了曲轴疲劳极限测试、数据处理等全过程的自动控制。
This testing system use microcomputer-control, by designing the hardware and software, to carry out the testing of fatigue-limit of crankshaft, and data process controled automatically.
该系统利用微机控制，通过硬件控制系统设计和软件设计，实现了曲轴疲劳极限测试、数据处理等全过程的自动控制。
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