• 弹性范围塑料范围(当材料不变应力流动),应变硬化范围和发生颈缩现象以其断裂终止范围。

    The elastic range, the plastic range (during which the material flows at a constant stress), the strain-hardening range, and the range during which necking occurs, terminating in fracture.

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  • 按照剪切滞后理论应变硬化规律,研究微复合材料变形应力状态

    The deformation and stress condition of the micro-composite are studied according to the shear-lag theory and strain-hardening law.

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  • 实验结果表明对于明显峰值应变应力-应变曲线采用加工硬化方法确定峰值应变和稳态应变一种有效的方法。

    Test results show that for the stress-strain curves with no obvious peak strain, it is a available to use work hardening rate method to determine peak strain and stable strain.

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  • 设计基于应变硬化性能,设计应力通常HAZ实际屈服以上

    If the design is based on the strain hardened properties, the allowable design stress will usually be above the actual yield point of the HAZ.

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  • 此,奥螺栓材料经过碳化溶液处理但是没有经过应变硬化,因此归ASTMA193类别1类别1a。

    Where austenitic bolting materials have been carbide solution treated but not strain hardened, they are designated Class 1 or Class 1a in ASTM A193.

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  • 提出一种修正随动硬化材料塑性应变关联流动

    A modified associated flow rule of plastic strain for kinematic hardening materials is presented.

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  • 试验证明饱和属于应变硬化介质激波动力加载条件下,土中应力保持其激波特征不变

    The tests prove that saturated soils are a kind of strain hardened media and stress wave will maintain shock wave characteristic invariant during shock wave dynamic loading.

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  • 研究软化硬化材料表面应变组织结构

    The microstructure in shot-peening surface plastic straining layer of several softening and hardening materials are investigated.

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  • 干燥缩水应变发生较慢因为一个透过硬化混凝土迁移作用

    The drying shrinkage strain develops slowly, since it is a function of the migration of the water through the hardened concrete.

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  • 并且给出切线模量相关标准确定加工硬化应力——应变关系曲线破坏方法,提供了利用任意固结的应力路径求解不排水强度计算

    The method to ascertain the damage point of process harden type stress-strain curve was shown, and the calculate expression of shear strength used by stress path under random consolidation degree.

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  • 研究烘烤温度、烘烤时间预拉伸应变罩式炉退火工艺生产的向同性烘烤硬化性的影响,力学性能相当的冷轧烘烤硬化进行了对比。

    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.

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  • 钢筋线性应变硬化模型表示

    The steel reinforcement is represented by a bilinear strain hardening model.

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  • 素体迅速应变硬化铁素体马氏载荷传递使钢具有较高初始应变硬化速率和较高强度

    The higher initial strain hardening rate and higher strength of dual phase are attributed to rapid strain hardening in ferrite and the load transfer from the ferrite to martensite.

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  • 本文主要讨论了材料线性应变硬化效应情况下,自紧管应力强度计算公式的推导

    Considering the linear strain-hardening effect of materials, this paper proposes a computation method for the stresses and strength of autofrettaged cylinders.

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  • 首先塑性范围应变奇次式相当精确地拟合一般硬化材料拉伸曲线

    This paper pressents a polynomial with four odd terms to fit the stress-strain relation for the materials with arbitrary hardening behaviour in the region of small elastoplastic deformation.

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  • 塑性硬化强扭理论基础上,利用双线性材料模型计算扭杆弹簧第一次强扭过程截面的应力应变

    Based on plastic intensifying theory, dual-linearity material model is used to calculate stress and strain on the cross section of a torsion bar spring by FE method.

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  • 阐述了观察到两种7000系列合金塑性应变下循环软化在大塑性应变幅下循环硬化现象

    The observed phenomenon that both 7000 series alloys tested soften cyclically at smaller plastic strain amplitude and harden at larger plastic strain amplitude is explained.

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  • 达到一定程度,岩石表现出短暂应变硬化岩石开始剪胀

    When it accumulated to a higher degree, the specimen began to shear and dilate after a short time of strain hardening.

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  • 应变硬化阶段可以未来震源观测到前兆剪切应变率异常条带。

    In the strain-hardening stage, an effective precursor can be observed from the future earthquake source.

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  • 介绍岩体塑性分析常用模型临界状态概念以及反映岩石塑性应变硬化(软化)的帽式模型。

    The models in common use with elastoplastic analysis of rock mass, conception of critical state and the cap models that reflect strain hardening (or softening) of rocks are discussed.

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  • 材料的应力应变关系硬化型时应力应变增量比关系为段斜率不同直线

    When the stree strain relationship is the weak hardening, the relationship between stress ratio and strain incremental ratio shows the straight line with two different slopes.

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  • 理论应变硬化规律研究复合材料塑性变形应力状态

    The elastic plastic deformation and stresses of the micro composite are studied according to the shear lag theory and strain-hardening law.

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  • 研究结果表明,低周拉扭疲劳加载下,拉与扭应力响应的硬化软化特性取决于应变加载路径加载参数。

    The results showed that the characteristics of cyclic hardening or softening depend to the strain loading paths and the loading parameters.

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  • 相对于常规奥氏体轧制铁素体轧制薄板屈服强度下降了20%左右,伸长率应变硬化指数与之相当

    Compared with the strip produced by conventional austenite rolling, the yield strength of the ferrite rolled strip was lower by about 20%, with same elongation and strain hardening exponent.

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  • 应变软化-硬化效应提出一种新的起因变形滞后效应理论解释,并定名粘弹软化-强化效应。

    A new theoretical interpretation for the strain softening and hardening effects, which were caused by the interior hysteresis nature of viscoelastic deformation.

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  • 条件下车轮材料应变硬化程度高低影响车轮材料的磨损性能,试验前车轮材料初始硬度的高低决定其抗磨损性能主要因素。

    The wear resistance of wheel steels is not affected by strain hardening under rolling/sliding conditions, while it is dominated by the pre-hardness of wheel steels.

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  • 符号后续数字表示经过完全回火应变硬化程度

    The number following this designation indicates the degree of strain-hardening remaining after the product has been partially annealed.

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  • 模型全面考虑了压力应力第三不变量变形硬化软化应变强化以及拉伸损伤各个影响因素。

    The main factors such as pressure, the third invariant of stress tensor, strain hardening and softening, stain rate and tensile damage have been taken into account in the constitutive model.

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  • 路面各材料应力应变关系符合硬化规律光滑接触

    The stress-strain relations of the materials used in the three layers are assumed as a power function and the contacts between layers are smooth.

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  • 结论表明,在应变率段花岗岩材料具有明显应变硬化效应,峰值应力前应力-应变曲线跃进特性。

    The results show that the granite has strain rate effect, hardening effect and jumping behaviors of stress-strain curve.

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