确定发动机零部件的最大应力应变循环是进行零部件寿命研究的重要内容之一。
To determine the principal maximal stress-strain cycle of engine components is an important step in research on engine components' life.
提出了一种避开瞬态温度场测试而通过残余应力计算得到最大应力应变循环的方法。
In order to avoid the difficulty and expensive measurement of transient temperature field, a method for maximal stress and strain cycle calculation using residue stress is proposed.
研究结果表明，该方法可以较准确地确定影响零部件寿命主要因素的最大应力应变循环。
The result shows that using the residue stress we can calculate accurately the maximal stress-strain cycle, which is the main factor influencing component life.
研究结果表明，弹塑性有限元分析法预测的寿命偏低，由残余应力可以较准确地确定最大应力应变循环。
The result shows that predicting life by elasticity-plasticity finite element analysis is low and the maximal stress-strain cycle can be calculated accurately by the residual stress method.
研究表明在完全循环加载过程中，由于残余应变的存在，马氏体相变应力随循环增加而减小。
The research results show martensite transformation stress decreases with an increase in cycle due to the residual strain during full cyclic loading.
对加卸载循环的应力-应变曲线，建立了能作理论拟合计算的材料宏观本构理论模型和关系方程。
Proposed a macroscopic constitutive model and relative equations which can be used to simulate theoretically measured stress-strain curves of loading -and unloading cycle.
喷丸过程和随后的接触疲劳滚压过程同属在赫兹应力作用下的循环弹塑性应变过程。
Both shot peening and contact rolling belong to the cyclic elastic-plastic deformation process under the action of Hertz stress.
研究了试样总应力、循环孔隙水压力、有效应力随时间的变化规律及试样有效应力与轴向应变的关系曲线。
Curves of total stress and time, of cycle pore water pressure and time, of effective stress and time, of effective stress and axial strain are respectively studied.
新发现随机循环应力—应变响应现象并建立其概率模型。
The random cyclic stress-strain responses are found and its probabilistic model is established.
潮汐应力引起地壳岩石的循环应变、累积疲劳损伤，形成疲劳断裂。
The tidal stress gives rise to cyclic strain, and then forms cumulative damages and fatigue fractures in crustal rocks.
对不同的岩石样品在MTS伺服压力机上进行了一系列的循环加、卸载实验，得到了不同岩石的应力-应变的滞回曲线。
From experiments of a series of load-unload cycles for rock samples by MTS pressure machine, the hysteretic stress-strain curves of different rock samples are acquired.
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.
以往的研究大多忽略初始偏应力对软黏土循环软化及动应力-应变关系的影响。
Unfortunately, previous work rarely incorporated the effect of initial deviator stress on cyclic degradation behavior and dynamic stress-strain relationship of soft clay.
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.
实验项目有等应变率拉伸、等应力蠕变和控制应变幅的等应变率塑性循环。
The experimental items of the tests are tension of constant strain rate, creep at constant stress, and strain controlled low cycle fatigue of constant strain rate.
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。
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.
研究连续油管钢循环应力-应变行为发现：相同试样在不同的恒应变幅下，表现出不同的循环特征。
To study of coiled tubing steel cyclic stress-strain behavior was found that: the same sample at different constant strain rate, the performance of cycle characteristics is different.
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.
在MTS压机上进行了砂岩、花岗岩等不同岩石样品的多种循环加卸载实验，得到一系列应力—应变曲线。
On the MTS pressure machine, a set of hysteresis graphs of stress-strain under uniaxial cycling loadings for different rock samples such as sandstone and granite were obtained.
研究了不同成份的铝镁合金在中温和不同应力作用下的动态应变时效，并阐述了动态应变时效在循环蠕变中的作用。
The application of dynamic strain ageing during cycling creep of Al-Mn alloys , consisting of various compositions, is studied at the middle temperature in this paper.
结果显示动态应变呈循环蠕变状态，蠕变的大小、速度与循环应力幅值有关。
The experimental results showed that the dynamic strain has feature of cyclic creep. Cyclic loading affected the creep and creep speed.
采用焊接热模拟试验方法研究了在焊接热循环和应力-应变循环同时作用下，2090铝锂合金焊接热影响区显微组织和力学性能的变化特征。
The variation of microstructure and mechanical properties of the welding heat-affected zone of 2090 Al-Li alloy were investigated by means of the welding thermal, simulated and strain cycles test.
基于内时塑性本构方程对循环松弛应力-应变曲线进行了数值模拟，取得了与实验相吻合的结果。
The calculation results showed that the constitutive relationship has accepted for the cyclic stress relaxation under strain-controlled tests.
应用局部应力应变法估算构件疲劳寿命时，通常要采用循环计数法。
Counting the number of cycles is the common method of estimating the life of fatigue of a component.
其次，对三城目安山岩和稻田花岗岩在恒定速率下进行循环加载卸载试验，得到了应力—应变曲线上很多点处的卸载曲线。
Next, unloading-reloading cycles are repeated in constant loading rate test with Sanjome andesite and Inada granite; and unloading curves at many points along stress-strain curve are obtained.
对316L不锈钢进行了单轴应变和应力控制下的室温和高温循环试验。
An experimental study of the cyclic properties is carried out for 316l stainless steel subjected to a uniaxial straining and stressing at both room and elevated temperature.
实验温度为室温，循环应变比和应力比均为0.1，载荷波形为三角波。
The fatigue tests were performed at room temperature and cyclic strain and stress ratio of 0.1 with triangle load wave.
对316L不锈钢进行了单轴应变控制和应力控制下的系统循环试验。
An experimental study was carried out of the cyclic properties of 316l stainless steel subjected to uniaxial straining and stressing.
对于这两种类型的测试设置，循环粘结应力滑移关系，循环应变保税玻璃钢到混凝土接缝和分布状况，提出讨论。
For both types of test set-up, the cyclic bond stress-slip relations, and cyclic strain distribution profiles for the bonded FRP-to-concrete joints are presented and discussed.
对于这两种类型的测试设置，循环粘结应力滑移关系，循环应变保税玻璃钢到混凝土接缝和分布状况，提出讨论。
For both types of test set-up, the cyclic bond stress-slip relations, and cyclic strain distribution profiles for the bonded FRP-to-concrete joints are presented and discussed.
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