从唯象观点分析了循环变形期间相变应力和弹性模量的变化。
The change of transformation stress and the modulus of elasticity during cyclic deformation was analyzed from the continuum mechanical point of view.
采用定点激光反射热循环方法，测量了硅基体上铜膜应力随温度的变化及等温松弛。
The stress variation with temperature and isothermal relaxation in copper films deposited onto silicon wafers are studied by fixed point laser reflection method.
同时，在各个冲击功下，材料的磨损机理在冲击应力的循环作用下随时间发生明显变化。
Furthermore, at all impact power, the wear mechanism of the material changes distinctively with the time under the cyclic impact stress.
而且，证实建立在某种试验应力状态下饱和软粘土循环强度和循环累积变形的变化规律，可以推广到一般应力状态下。
And the changing laws of cyclic strength and cyclic accumulate deformation built on certain test stress states have generality and can be used in general stress states.
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.
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.
在此基础上，分析了双轴拉-压极限强度随冻融循环次数的变化规律，并在主应力空间和八面体应力空间建立了同时考虑冻融循环次数和拉压比的破坏准则。
On this basis, the failure criterion of concrete simultaneously considering the freeze-thaw cycle and tension-compression ratio in principle stress space and octahedral space is established.
获得了用电阻变化测量疲劳损伤的公式，应用计及疲劳极限和循环应力幅影响的非线性累积疲劳损伤模型，给出了金属材料疲劳损伤的剩余寿命预测公式。
By using the nonlinear cumulative fatigue damage model considering the influence of the fatigue limit and the cyclic stress amplitude, the remaining life formula of the.
获得了用电阻变化测量疲劳损伤的公式，应用计及疲劳极限和循环应力幅影响的非线性累积疲劳损伤模型，给出了金属材料疲劳损伤的剩余寿命预测公式。
By using the nonlinear cumulative fatigue damage model considering the influence of the fatigue limit and the cyclic stress amplitude, the remaining life formula of the.
应用推荐