当预应变超过0.95%时，反向屈服强度达到恒量。
When the pre-strain surpasses 0.95%, the reverse yield strength reaches to a constant.
裂纹形成的断裂为穿晶解理机制，预应变可导致更多的二次裂纹。
The fractography of the fatigue crack initiation displayed cleavage facet and more second cracks after pre-training.
室内静态模型试验结果表明，预应变加筋法可明显提高加筋效果。
The results of laboratorial static model tests demonstrate that this technique has obviously improved the reinforcement effects. A method to estimate the prestrained value is also put forward.
钢的化学成分、强度、服役应力和预应变处理显著影响其微塑性服役行为。
The chemical composition, strength, cyclic stress and pre-cyclic-strain have a remarkable influence on the micro-plasticity behavior of the steels.
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.
一个如图83所示的平均应变或预应变，在某种情况下，能够缩短以后的疲劳寿命。
A mean strain or prestrain, as in FIG. 83, can under certain conditions reduce the subsequent fatigue life.
等双拉预应变将明显降低正应变比区的成形极限，对负应变比区的成形极限有所提高。
Equiaxial prestrain will obviously decrease the forming limit on positive strain ratio zone, while it slightly improves the forming limit on negative strain ratio zone.
单拉预应变路径将显著提高正应变比区的成形极限，而对负应变比区的成形极限影响不大。
Uniaxial prestrain will obviously improve the forming limit on positive strain ratio zone, while it has little effect on negative strain ratio zone.
研究分析烘烤温度、烘烤时间、预应变量等烘烤条件对超低碳烘烤硬化钢烘烤硬化性能的影响。
The present paper discusses the effect of baking temperature, baking time and pre-strain on the bake hardenability of ultra low carbon bake hardening steel (ULC-BH steel).
两种材料焊接接头在动载和预应变下的屈服强度和抗拉强度均有所提高，但对其塑性影响均不大。
The yield and tensile strength of the welded joints of the two kinds of materials increase under dynamic loading and prestrain condition that have little effect on the plasticity of structural steel.
预应变可以延长疲劳裂纹形成寿命，提高疲劳裂纹形成的抗力系数和裂纹形成的当量应力门槛值；
The pre-straining prolonged the fatigue crack initiation life, and increased resistance coefficient and equivalent stress threshold of the fatigue crack initiation.
冷变形提高了钢中位错密度，也加剧了位错分布的不均匀性，后者是预应变加速组织演变的直接原因。
Cold deformation results in increasing of dislocation density and inhomogeneous dislocation distribution, the latter is the direct reason for pre-strain to promote microstructural evolution.
在各弯曲试样得到不同的预应变后，又对其进行反向加载，记录不同预应变下各试样反向加载的弯矩随表面应变的变化曲线。
In these experiments, specimens were bending to produce different pre-strain respectively, and then reverse bending were taken one by one.
并结合有限元计算所得的不同预应变条件下的缺口前端的应力应变场分布，主要分析了预应变对不同组织低合金高强钢缺口试样断裂行为的影响。
The fracture behavior at crack tip within CMn steel is analyzed based on the experiments of 3 PB precracked specimens and FEM calculation and simulation.
基于以上的观点，本文采用慢应变速率实验方法探讨了预形变对X70管线钢在模拟土壤介质中应力腐蚀敏感性的影响。
On the base of above appoints, the slow strain rate test was used to study the effect of prestraining on the SCC susceptibility of X70 pipeline steel in simulate soil media.
研究了烘烤温度、烘烤时间和预拉伸应变量对罩式炉退火工艺生产的各向同性钢的烘烤硬化性的影响，并与力学性能相当的冷轧烘烤硬化钢进行了对比。
The effects of baking temperature, baking time and prestrain on the bake hardenability and dent resistance of isotropic sheet steel and BH sheet steel produced by batch annealing were studied.
通过对两个例子模拟结果和板料应力应变的分析，总结出了工艺预冲孔设置的一些规律。
Some rules of processing pre-punched hole setting are summarized through the simulated results of two instances and the analysis of stress and strain for sheets.
文中针对铝合金预拉伸厚板的特点，提出了测量其内部残余应力的方法，并运用弹性力学理论进行了理论推导，得到了应力-应变关系矩阵。
The modified removal method for measuring residual stress in thick pre-stretched aluminum plates is proposed and the stress-strain relation matrix is deduced by elasticity theory.
首次提出了影响矩阵的最小扭转应变能设置支座预偏心的方法，推导出了合理支座预偏心值的数学表达式。
The suitable bearing eccentricity method of influence matrix minimum torsion strain energy was presented for the first time, and the expression of the value of bearing eccentricity was educed.
对该模型施加适当的约束和载荷，通过预前共轭梯度法，计算得到了轴类零件在常见工况-弯曲和扭转载荷作用下的位移、应力、应变等力学特性。
Results of displacement, stress and strain of the shaft under the common loads of bend and torsion are obtained by Pre-condition conjugate gradient method.
我的律师说，收取预聘费，也是应变率。
I have an attorney that is charging a retainer fee and also a contingency rate.
用弹塑性有限元法分析超速预过载处理后叶轮的残余位移、应变及应力场 ，给出相应的求解结果。
We used periodic symmetry constraint on FEA Model. Elastic plastic finite element principle used in analysis process.
用弹塑性有限元法分析超速预过载处理后叶轮的残余位移、应变及应力场 ，给出相应的求解结果。
We used periodic symmetry constraint on FEA Model. Elastic plastic finite element principle used in analysis process.
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