记录了各自的循环应力—应变滞后环，得出了试样的循环响应特征和各试样的高温低周疲劳寿命。
The individual cycle-strain hysteresis loops were recorded, and the cycling response and high temperature low cycle fatigue life were obtained.
对调质处理的45碳索结构钢进行了应变循环低周疲劳实验以及应力控制棘轮失效实验。
The cyclic strain low cycle fatigue and cyclic stress ratcheting failure of 45 carbon steel treated by quenching and tempering were experimentally investigated.
引入了概率循环应变—寿命曲线描述低周疲劳循环应变—寿命试验数据的分散性。
To model the random cyclic strain life relations during low cycle fatigue, probability based cyclic strain life curves are suggested.
结果表明，扭转预应变降低低周疲劳寿命，循环应力随扭转预应变的增大而增大。
The results show that low cycle fatigue life is reduced and cyclic stress is raised by torsional prestrain raising.
本文对45号钢在静载荷下与在循环加载下的本构关系进行了探讨，并给出了低周与高周应变循环的疲劳寿命表达式。
The 45 steel natural relation of dead load with cyclic load and low frequency and high frequency strain cycling fatigue life are studied.
本文对45号钢在静载荷下与在循环加载下的本构关系进行了探讨，并给出了低周与高周应变循环的疲劳寿命表达式。
The 45 steel natural relation of dead load with cyclic load and low frequency and high frequency strain cycling fatigue life are studied.
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