Under the action of tensile stress and tensile stress, the bolt with relatively low strength will crack first, and then the fatigue fracture will occur.
在拉应力和应拉力交替的作用下，强度相对较低的螺栓会先产生裂纹，进而发生疲劳断裂。
Some characteristics of the rolls, such as strength vs. Thermal shock, tensile strength and contact fatigue strength, influence spalling. Thus, strength was investigated as a hardness parameter.
辊子的一些特性，例如：强度、耐热性、抗拉强度、接触疲劳强度都和剥落有关。因此，强度可作为硬度的参数来研究。
Simple tensile tests and low-cycle fatigue tests under stress control at different temperature were conducted to investigate the effects of temperature on fatigue behavior and fatigue strength.
通过不同环境温度下的简单拉伸试验和应力控制下的低周疲劳试验，找出了环境温度对应力控制下的疲劳行为和疲劳强度的影响。
The effects of textures on the elastic modulus, yield and tensile strength, fracture and fatigue properties as well as some problems on the application of texture strengthening were discussed.
列举织构对钛合金弹性、屈服、拉伸强度、断裂及疲劳等各种性能的影响；讨论了有关钛合金织构强化实际应用的一些问题。
Heat treatment can increase the tensile strength and the hardness of the rail steel, and the contact fatigue strength is also increased.
通过热处理可提高轨钢的强度及硬度，接触疲劳强度也随之提高。
The fatigue life of the coiled tubing also increases with the improvement of its tensile strength.
随连续油管材料抗拉强度的提高，其疲劳寿命明显增加。
The mechanical characteristics of OPGW are very important to OPGW safe-running as earth wire, especially the tensile strength, creep and fatigue.
OPGW的力学特性对于OPGW作为地线安全运行很重要，尤其是拉断力、蠕变、振动疲劳特性。
By analyzing the force applied on the tubing, the tensile strength and anti-fatigue strength of the tubing are calibrated.
通过对油管的受力分析，校核偏磨油管的抗拉强度和抗疲劳强度。
The influence of the level of the pretreated short fibre on tensile strength, tear strength, flex fatigue and conductivity of the acetylene black filled VMQ/EPDM blend vulcanizate was studied.
研究了预处理短纤维用量对乙炔炭黑填充甲基乙烯基硅橡胶（VMQ）／EPDM共混硫化胶拉伸、撕裂、耐屈挠疲劳和导电性能的影响。
The effectiveness of the repair scheme, including the tensile strength, the fatigue life and the crack progress during fatigue was investigated experimentally.
结果表明，复合材料补片胶接修补能有效地提高裂纹板的破坏强度和刚度，降低裂纹板的疲劳裂纹扩展速率，提高其疲劳寿命。
The method met the demands of the strength and fatigue test tensile-press loading apply technique require of complex aircraft structure. Test results demonstrated that …
试验结果表明，与传统加载所采用的胶布带相比，三种形式加载块的静强度、疲劳性能和加载速率均有明显提高。
The method met the demands of the strength and fatigue test tensile-press loading apply technique require of complex aircraft structure. Test results demonstrated that …
试验结果表明，与传统加载所采用的胶布带相比，三种形式加载块的静强度、疲劳性能和加载速率均有明显提高。
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