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- It was shown that the cumulative plastic strain depended not only on the applied cyclic stress and number of cycles,but also on the initial static deviatoric stress level. 在上海地区典型饱和软粘土不排水循环三轴试验的基础上,分析了影响软粘土塑性累积变形的主要因素:循环荷载的作用次数,初始静偏应力和循环加载动偏应力。
- Corrosion fatigue. A type of failure that results from the simultaneous action of a cyclic stress and chemical attack. 腐蚀疲劳:由循环应力和化学腐蚀同时作用导致的一类失效。
- The results show that low cycle fatigue life is reduced and cyclic stress is raised by torsional prestrain raising. 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。
- Meanwhile, the whisker orientation affects the shapes of the stress strain curves of the composites. 同时晶须取向也影响复合材料的热压缩应力-应变曲线的形状。
- An important aspect of the stress strain data in Fig. 78 is the linearity of the log-log plots. 图78中应力-应变数据的一个重要情况是在双对数座标上图线的直线性。
- The amplitudes of pore pressure increased notably with the increase of cyclic stress ratio, and the residual pore pressure also increased obviously. 当循环应力比增大时,动孔隙水压力变化幅值显著增加,而残余孔压也较大。
- The formulate of stress、strain and BEF have been deduced and all these have been testified by experiment. 通过实验,证明了这些公式的正确。
- Analyzing the micro plastic deformation of metal material under static load and cyclic stress, The scientific basis for choice dynamical stress of VSR is provide. 本文分析了静载荷及循环载荷下的微塑性变形行为,认为振动时效动应力的选择应以材料的疲劳极限作为依据。
- The results show that the method can be applied to strength behaviors and stress strain characteristics of plastic foamed beads light soil. 结果表明:该方法可以比较合理地对塑料发泡颗粒轻质土的应力-应变特征及强度特性进行评价;
- The results reveal that the solid solution and aging treatments will lead to a change in both cyclic stress response and cyclic stress-stain behavior of the extruded AM50 alloy. 在高的外加总应变幅下,固溶和时效处理可以提高挤压变形AM50镁合金的疲劳寿命,但当外加总应变幅较低时,固溶和时效处理则降低挤压变形AM50镁合金的疲劳寿命;
- The earthquake spectrums analysis indicated that the failures of building structural steels at seismic areas are created of high stress strain and low cycle fatigue. 地震波谱分析表明,地震区建筑结构用钢受震时的主要失效形式是高应力低周疲劳损伤和断裂。
- This thesis mainly researches whole performance of high-rise building disposed SRC column and partial stress、strain of SRC column,it belongs to the field of RC. 本文主要研究配置型钢混凝土柱的高层结构的整体工作性能和型钢混凝土柱的局部应力应变情况,属钢筋混凝土课题。
- Similar cyclic stresses may have occurred due to wind-induced swaying motion during storage. 同样在存放时由风力引起的横向摆动也可以产生类似的循环应力。
- Fatigue. Failure, at relatively low stress levels, of structures that are subjected to fluctuating and cyclic stresses. 疲劳:在相对低的应力水平下,承受交变和循环应力结构的失效。
- Thermal fatigue. A type of fatigue failure wherein the cyclic stresses are introduced by fluctuating thermal stresses. 热疲劳:一种疲劳失效类型,循环应力是由于交变热应力引起的。
- By plasticity increment theory,the stress strain numerical calculate methods of bellows bulge forming, solvers theory calculating problems of bellows bulge forming technology are put forward. 采用塑性增量理论,建立了波纹管液压胀形的应力、应变数值计算方法,解决了波纹管液压胀形工艺的理论计算问题。
- The effect of cyclic stress on the strength of creep rupture and recurrent creep rupture as well as low cycle fatigue of a cast nickel-base superalloy with high Al and Ti contents has been studied under different temperature and stress. 本文对一种高铝钛镍基铸造合金,在不同温度分别测定单调持久、周期持久和低周疲劳性能。
- The result indicates, the form of stress strain relations adding the structural parameter are converted into the hyperbolic form, and could be calculated with the expression of hyperbola. 结果表明,引入结构性参数后的应力应变曲线转化为有规律性的双曲线形态,并可用双曲线拟合计算。
- Cable-grider anchorage zone of cable-stayed bridge was stress concentration and complex,especially should pay more attention to fatigue performance under cyclic stress in operation stage. 斜拉桥索梁锚固区焊接集中,受力复杂,特别是在运营阶段循环应力作用下的疲劳性能值得关注。