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1)  strength degradation
强度退化
1.
Firstly, according to analyze the fatigue test result of the normalized carbon steel, a logarithmic expression is developed to describe residual strength degradation process, the definition and expression of fatigue damage under symmetrical she with constant amplitude are also given, and the expression 'can explain the non-linear property of fatigue damage.
通过对正火45钢的试验数据分析,提出了一个反映剩余强度退化的对数表达式,给出对称恒幅应力循环下疲劳损伤的定义与表达式。
2.
Based on the study of strength degradation of material in the fatigue process,a strength degradation model is proposed.
在研究疲劳过程中材料强度退化规律的基础上 ,建立了一个强度退化模型 。
3.
A nonlinear and continuous strength degradation model is presented from the view point that fatigue damage process is the process during which material static strength degrades constantly.
从疲劳过程本质上是材料静强度不断退化的过程的观点出发,建立了一个非线性的、连续的强度退化模型。
2)  strength aging degradation
强度退化
1.
Stress-strength interference reliability analysis considering stochastic multi-stress and strength aging degradation;
复合应力作用下强度退化的应力-强度干涉模型可靠性统计分析
2.
A stress-strength interference(SSI) reliability model taking into consideration stochastic stress and strength aging degradation and point estimation of unknown parameters in the model are presented.
在随机应力作用下强度随使用时间不断退化时,给出了一个周期性随机应力-退化强度干涉可靠性模型及其点估计方法,该模型考虑了应力与强度退化的相关性,最后利用算例验证了该模型的有效性。
3)  strength degeneration
强度退化
1.
In order to master the mechanical behaviors of vertical connection and correct design in prefabricated reinforced concrete (PRC) structures the strength degeneration and stiffness degeneration of the connection under repeated loading are analysed based on test results and theoretical analysis.
为了了解PRC结构竖缝的抗震性能,并进行合理的设计,以试验结果及理论分析为基础,对竖缝在反复荷载作用下强度和刚度的退化进行分析,认为接缝混凝土强度的退化率随接缝宽度的增大而减小;接合筋强度退化率仅与剪切摩擦系数有关;接缝强度的退化率随接缝宽度增大而减小,与接合筋的关系呈非线性;接缝刚度退化率随缝宽增大而减小,与接合筋关系不大。
4)  retrogressive intensity
退化强度
5)  Degradations of strength and stiffness
强度与刚度退化
6)  Residual strength degradation
剩余强度退化
补充资料:表光合强度(见光合强度)


表光合强度(见光合强度)
forecast of sowing or transplanting time

b iaoguanghe qiangdu表光合强度见光合强度
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
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