结果表明，钽的流动应力对温度和应变率的变化相当敏感。
The results showed that the flow stress of tantalum was very sensitive to the changes of temperature and strain rate.
变形速度对材料流动、初始屈服应力、流动应力影响不明显。
Deformation velocity has no obvious effect on the flow of material, initial yield stress and flow stress.
温度对流动应力的影响较应变率对流动应力的影响更为显著。
Furthermore the flow stress level changed more dramatically with increasing temperature.
降模量及弹性模量对局部损伤变量率的影响取决于流动应力的大小。
The influences of softening modulus and elastic modulus on local damage variable rate depend on the flow stress level.
减小刃带高度或增加刃带宽度，能使金属流动应力差得到显著降低。
To reduce the hight of edge-line or increase the width of it can reduce greatly the stress difference of metal flow.
分析了影响轧制力计算精度的主要原因，即来源于流动应力的准确性。
The main factor influencing computational accuracy of rolling load is the accuracy of material's flow stress.
以现场的钢种为样本，测定热轧条件下的流动应力，建立流动应力模型。
Based on the actual steel grade of production, the flow stress is measured under rolling condition, and the mathematical models are obtained.
采用等温恒应变速率压缩试验对超高强度铝合金的流动应力规律进行了研究。
Based on the isothermal constant strain-rate compression tests, the flow stress of a ultra high strength aluminum alloy was researched.
以70号钢流动应力模型为基础编制了计算线材轧制力能参数的计算机软件；
Steel flow stress model is it calculate for foundation line material rolling strength can the computer software of the parameter to work out with one;
文中推导了铜柱在静压下的流动应力，分析了压力及温度对铜柱压后高的影响。
This paper deduced the flow stress of copper column that was under the action of static pressure, and it analyzed the influences of the pressure and temperature.
增加降模量或降低弹性模量，局部损伤变量最大值-流动应力的关系趋于平直。
The relationship between maximum local damage variable at the center of the band and flow tensile stress becomes flat as softening modulus increases or the elastic modulus decreases.
采用等温恒应变速率压缩试验对7A60超高强度铝合金的流动应力进行了研究。
The flow stress of 7A60 ultra high strength aluminum alloy was studied by isothermal compress test at constant strain rate.
实验结果表明，通孔泡沫铝有明显应变率效应，随应变率上升，泡沫铝流动应力提高。
Experimental results show that the flow stresses of the aluminum foams increase with increasing strain rate, demonstrating a distinct strain rate effect in the open-cell aluminum foams.
试验结果表明，该合金流动应力随着变形温度的升高而下降，随着应变速率的增加而增加。
The results showed that the flow stress of this alloy reduced with increasing deform temperature and increased with increasing strain rate.
而以往的流动应力模型主要考察变形温度、变形速度和变形程度，对位错密度的研究很少。
In the past years, the models of flow stress were mainly focused on deformation temperature, deformation speed and deformation degree, but seldom on dislocation density.
随晶粒度的增大，材料的塑性和流动应力都发生了降低，这是由于表层晶粒所占份额增加。
The plasticity and flow stress increase with grain size growth, because the volume ratio of grains on surface layer increases.
结果表明：该合金高温变形时存在明显的稳态流变特征，流动应力对应变速率和温度敏感。
The results indicated that the rheologic feature of steady-state is significant; the flow stress is sensitive to strain rate and temperature.
结果表明：超细晶工业纯钛在热压缩过程中，热压缩条件不同流动应力变化规律会有所差异。
The results showed that the flow stress of UFG CP-Ti would change significantly with the thermal compression conditions.
结果表明：变形温度、变形速率和变形程度对流动应力和再结晶晶粒尺寸均有不同程度的影响。
The influences of deformation temperature, deformation rate and deformation degree on the flow stress and grain size are different. The deformation degree mainly influences the shape of flow curves.
当等效应变速率较大时，变形热效应对流动应力的影响相当显著，压缩过程基本上成为绝热过程。
While the equivalent strain rate is high, this influence is of importance and the compression process can be approximately considered as an adiabatic process.
在等温恒应变速率压缩过程中，随着等效应变速率的增大，变形热效应对流动应力的影响程度增大。
During the isothermal constant strain rate compression process, the effect of deformation heating on flow stress increases with increasing equivalent strain rate.
基于晶体塑性理论及数理统计理论，建立了流动应力波动幅度与晶粒尺寸和坯料几何尺寸间的关系。
Based on the crystal plasticity theory and mathematical theory of statistics, the relation of flow stress fluctuation quantity to grain dimension as well as billet dimensions was built.
在该模型中，等效应变、等效应变速率和变形温度是模型的输入向量，输出向量是材料的流动应力。
True strain, strain rates and temperatures were input parameters of the model, while flow stress was the only output parameter.
结果表明，流动应力随应变速率的增大而增大，不同温度和应变速率的真应力-真应变曲线呈稳态流动型。
The results show that the flow stress increases with the increase of strain rate, and the true stress-true strain curves at different temperature and strain rates are stable-state.
采用该模拟软件，可对流动应力模型影响轧制力的程度进行分析，也可对传热模型影响轧制力的程度进行分析。
The simulating software can be used not only to analyze the dependency of the rolling load on flow stress models, but also the dependency of the rolling road on thermal transfer models.
研究了埋头弹火炮弹带挤进时的流动应力和摩擦系数，针对其特殊结构数值计算了挤进阻力，分析了挤进过程对内弹道性能的影响。
The stress and the friction coefficient of band during the engraving process were researched, and the resistance of this special structure was calculated.
高温下的材料流动应力通常是应变总量、温度和应变速率的函数，考虑这三个因素对流动应力的影响，建立了高温硬化材料的弹塑性本构关系矩。
The present work takes account of the above influence factors on the flow stress and derives a constitutive matrix for the hot deforming materials.
通过适当的设计，可以使晶粒流动方向与实际使用时的主应力方向一致。
With proper design, the grain flow can be oriented in the direction of principal stresses encountered in actual use.
弹性范围，塑料范围（当材料以不变的应力流动时），应变硬化范围和发生颈缩现象以其断裂终止的范围。
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.
接着，通过求解局部扩张血管段内的血液流动方程，导得血液流速、压力和血管壁切应力的分析表达式。
Through solving the blood flow equations for local vessel expansion region, the analytical expressions of blood flow velocity, pressure and wall shear stress were then obtained.
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