The permissible stress range formula and transfer factor of fatigue stress range were deduced.
推导了疲劳许用应力范围计算公式和不同概率水平下疲劳应力的转换关系。
P The fatigue stress range for prestressing tendons shall be in accordance with en 10138 or given in an appropriate European Technical Approval.
疲劳应力范围必须与EN, 10138或相应欧洲技术认可中的规定一致。
The proposed formula used to evaluate the allowed fatigue stress range shows that a new amendment for the criterion of allowable fatigue stress provided in the current code is necessary.
提供的公式可用来估定合乎实用的疲劳应力幅值，表明现行规程中提供的疲劳容许应力指标需要加以修正。
But the stress changing range in fatigue life curve is narrow.
不同的是该材料的疲劳寿命曲线的应力范围比较窄。
Using the samples with equal thickness to the tank and with the same size as the real undercuts, a simulation fatigue testes are performed under the stress range of an actual structure.
再采用与实物等厚度、与真实咬边等尺寸的模拟试样，进行与实际结构等应力范围条件下的模拟疲劳试验。
The results show that the increase of stress range value would result in decreasing the high temperature fatigue lifetime of the alloy and the difference of the deformation mechanism.
结果表明，应力幅值的增加会导致合金高温疲劳寿命的下降及使变形机制改变。
It is considered that the said cracks belong to the corrosion fatigue range, featuring stress corrosion fatigue.
分析认为这种裂纹属于腐蚀疲劳的范围，具有应力腐蚀疲劳的特征。
It is considered that the said cracks belong to the corrosion fatigue range, featuring stress corrosion fatigue.
分析认为这种裂纹属于腐蚀疲劳的范围，具有应力腐蚀疲劳的特征。
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