Average grain size increased and grain became round with strain rates reduction.
应变速率减小，晶粒平均尺寸增大，晶粒变得圆整。
Effect of strain rates on peak flow stress is relate to deformation temperature.
应变速率对峰值应力的影响与变形温度有关。
It was obtained that the yield strength was increased as the strain rates were raised.
在讨论应变率变化时，获得了屈服强度随应变率增大而增高的结果。
The results show that creep should be connected with hot ductility at low strain rates.
研究结果表明，低应变速率下的热塑性与蠕变密切相关。
The compress tests on 3D woven glass-fiber composite have been carried out at high strain rates.
首次对三维机织玻璃纤维复合材料进行了在高应变率下的面外压缩试验。
The corrected flow stress is generally higher than the uncorrected at the same strain rates and strain.
在相同应变速率、相同应变下，修正的应力要高于未修正的应力。
Many researchers have calculated strain rates from the same GPS measurement data and obtained different results.
许多研究人员利用GPS测量的速度资料计算了地应变率场，但其结果差异较大。
Coexistence of brittle and ductile features implies a tectonic evolution with alternation of high and low strain rates.
韧、脆性构造的共存意味着构造演化过程为快、慢应变速率的交替。
The deformation characteristics of concrete under different confining pressures and different strain rates were analyzed.
并对混凝土材料在不同围压下以及不同应变速率下的变形特性进行了深入分析。
When the birds strike on the aeroengine, the deformations of the blades are usually occoured under the high strain rates.
鸟与航空发动机叶片相撞时，叶片的是在高应变率下变形的。
Molecular dynamics is used to investigate the mechanical behaviour of crystal material at high strain rates in this paper.
本文用分子动力学方法研究了高应变率下晶体材料的力学行为。
Using SHPB technique and a BP neural network program, the constitutive model of polymers at high strain rates is identified.
利用SHPB技术和自编的BP神经网络程序，以尼龙为代表性研究对象，对高聚物在高应变率下的本构模型进行了辨识。
True strain, strain rates and temperatures were input parameters of the model, while flow stress was the only output parameter.
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。
We obtain contemporary tectonic strain rates of Chinese continent from analyzing crustal motion inferred from GPS velocity field.
通过分析中国大陆地壳运动GPS速度场得到现今构造应变率场。
To objectively describe the behavior of confined concrete under high strain rates the loading history has to be taken into account.
客观描述高应变率作用下的约束混凝土的力学行为需要考虑加载历史。
Firstly, by the compression test in concrete under different strain rates, concrete has been determined as rate-sensitive material.
首先，通过不同应变率下混凝土材料的压缩实验，确定混凝土材料确为率敏感材料。
MD simulations are carried out to study spallation in solid and liquid copper incuded by planar shock loading at exteme strain rates.
本文借助分子动力学模拟研究了极高应变率下固体铜和液体铜由平面冲击导致的断裂。
Split Hopkinson Pressure Bar (SHPB) has been used to study the constitutive and mechanical properties of rocks under high strain rates.
高应变率下岩石的动态本构关系和力学特性，目前主要是利用SHPB装置等来获得。
However, the strain rates in thin films are smaller than those of bulk materials, making the strain more difficult under the same stress.
薄膜比块体材料的应变速率低，在同样的应力下应变更加困难。
Effects of SS400 steel's deformation temperature and strain rates on its deformation behavior was studied using single pass compressing test.
采用单道次压缩试验，研究了变形温度和变形速率对SS400钢热变形行为的影响。
The dynamic tensile properties of five types of high strength fiber bundles were measured and the sensitivity of strain rates was investigated.
测试了五种纤维束的准静态和动态应力应变关系，并比较了它们对应变率的敏感性。
The experimental results show that disheveled catastrophic brittle failure is observed for the [0]16 specimens tested at quasi-static strain rates.
实验结果表明：[0]16层板破坏时表现出典型的不规则脆性破坏，纤维的损伤具有初始门槛值，而纤维的强化存在应变率门槛效应。
The mechanical property of AZ31 magnesium alloy rolling sheet under different temperatures and strain rates was studied through uniaxial tensile test.
通过单向拉伸试验研究了AZ31镁合金轧制板在不同温度和应变速率下的力学性能。
The distribution of strain rates can not only influence the vibration modes of dam, but also have significant effects on the dynamic damage of arch dams.
应变率分布形态不仅可以很好地表征拱坝的振动形态，而且对于高拱坝的动力响应的影响也不可忽略。
Uniaxial compression tests are performed on saturated frozen sand at various temperatures and strain rates. The elastic modulus is obtained from these tests.
通过在不同温度及不同应变率下对饱和冻结中砂进行单轴压缩试验，获得了静载下饱和冻结中砂的弹性模量。
The failure envelopes of dynamic strength of frozen silt under different strain rates resemble each other in shape, namely, obey the parabola failure criterion.
不同应变速率下的动强度包络线呈现相似形式，服从抛物线破坏准则。
The mechanical behaviour of polycarbonate (PC) is studied in this paper by tensile experiments. A set of true stress—strain curves for different strain rates is obtained.
本文通过拉伸实验研究了国产聚碳酸酯板的力学行为，得到了这种材料在不同应变速率下的真实应力—应变曲线。
The specimens of 6063 aluminum alloy are tensioned under different stress triaxiality and different strain rates, the mechanical properties of 6063 aluminum alloy can be drawn.
对6063铝合金试样在不同应力三轴度和不同应变率下进行拉伸试验，得到了该合金在这两种情况下的力学性能。
The specimens of 6063 aluminum alloy are tensioned under different stress triaxiality and different strain rates, the mechanical properties of 6063 aluminum alloy can be drawn.
对6063铝合金试样在不同应力三轴度和不同应变率下进行拉伸试验，得到了该合金在这两种情况下的力学性能。
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