应变速率

应变速率对低硅含铌TRIP钢力学性能的影响

Effects of strain rate on mechanical properties of low-silicon TRIP steel with niobium

对PMAlLi合金在高应变速率超塑性变形行为进行了研究，对其变形机制进行了讨论。

The results of a high strain rate superplastic property and deformation mechanism of rapidly solidified PM Al-Li alloy have been reported .

为此，对用GPS位移（或速度）资料计算应变（或应变速率）的方法进行了研讨。

We discuss the method of calculating strain with GPS displacement data .

环境介质和应变速率对ABS拉伸行为的影响

Effect of Environmental Media Strain Rate on Tensile Behaviour of ABS Resin

用热模拟压缩试验研究了Ti－17合金高温变形特点，通过金相组织和TEM观察发现，β区变形是以扩散回复型变形机制占主导地位；高应变速率下只发生动态回复；

The high temperature deformation characteristic Ti-17 alloy was investigated using hot compressive test .

微量硼和应变速率对变形TiAl合金室温力学性能的影响

Effects of trace boron addition and strain rate on room temperature mechanical properties of wrought TiAl Alloy

使用全球定位系统（GPS）卫星接收仪在美国新马德里地震带重新测量了历史上的三角网，并据此估算了震间应变速率。

Results of interseismic strain rate determined by re-occupation of a historical triangulation network in the New Madrid seismic zone by the Global Position System ( GPS ) are reported .

热变形态TiAl基合金超塑性拉伸过程中应变速率敏感系数的分析

Analysis of the Strain Rate Sensitivity Coefficient of a Hot Deformed TiAl Based Alloy in a Superplastic Tensile Test

采用霍普金森杆方法研究了高速冲击下应变速率对ECORPC动态力学性能的影响。

Using the split Hopkinson pressure bar technique , the dynamic mechanical behaviour of ECO-RPC was investigated under different strain rates .

利用一元线性回归分析，分别求出变形激活能Q、应变速率敏感指数n、材料常数α和A，建立合金热变形本构模型。

After figuring out deformation activation energy respectively Q , strain rate sensitive index n , material constants alpha and A respectively , the constitutive model of thermal deformation is established .

应变速率和锰对FeAl合金室温延性的影响

Effects of strain rate and manganese on room temperature ductility of FeAl alloy

具有小晶粒、厚片层显微组织的全片层TiAl合金在较低的应变速率下将会具有较好的塑性。

The FL TiAl alloys with small grain size and thin lamellar spacing will have batter ductility at relatively low strain rate .

在高应变速率条件下，LY12铝合金具有较好的超塑性和室温性能。

In higher strain-rate condition , LY12 alloy has good superplasticity and room temperature properties .

裂纹扩展速率在区域I随裂尖应变速率增加而增大，而在区域II不随裂尖应变速率的改变而变化。

In region I , the crack growth rate increased with increasing crack tip strain rate . In region II , the crack propagation rate was independence of the crack tip strain rate .

可见改变ABS中橡胶含量及应变速率，材料的性能发生改变，通过SEM电镜照片发现材料发生银纹、空洞和剪切屈服。

It is obviously that the properties of ABS resin were changed with rubber content and strain rate . It found that there were craze , cavitation and shear yield .

基于材料性能测试试验数据，利用MATLAB程序进行非线性曲线的拟合，得到相关参数，进而建立了与材料应变速率相关的塑性本构模型。

Based on the data acquired from testing experiments of material performance , non-linear curve fitting has been conducted through MATLAB simulation , which provides the plastic constitutive model in relation to strain rate .

基于刚粘塑性有限元法的最大应变速率恒定法可将压力加载过程控制在最佳状态（优化的P－T曲线）；改善了钣料胀形轮廓的厚度分布状况。

For the constant method of the maximum strain rate based on rigid viscoplastic finite element method , the loading process is controlled in a optimum state ( optimized P T curve ), and the thickness distribution of sheet metal superplastic bulging is improved .

铝膜断片的尺寸取决于应变、形变温度、应变速率和铝膜厚度，但最基本的影响因素是PET基体中的应力和铝膜厚度。

The dimension of Al-coating fragments is determined by temperature , strain , strain rate and thickness of the Al-coating , but the most critical factors of them are stress in PET matrix and thickness of Al-coating .

在应变速率敏感系数和压头速度固定的条件下，SPT最大破裂载荷与粘度成正比；

When the strain rate sensitivity and punch velocity are certain , maximal crack loads of SPT load & displacement curves are proportional to viscosities .

LC4高强铝合金的慢应变速率拉伸试验

Slow strain rate tension test of high-strength aluminum alloy 7075

采用动态弹塑性有限元分析方法，对CharpyV型缺口（CVN）试样在冲击加载条件下缺口前沿各点的应变速率分布特性进行了研究。

The strain rate field below notch root of the charpy V-notched ( CVN ) specimen was numerically simulated using a dynamic elasto-plastic finite element method .

冲击加载时CVN试样缺口前沿应变速率分布特性的数值分析

Numerical Analysis of Strain-Rate Field Below Notch Root of the Charpy V-Notched ( CVN ) Specimen

利用TEM、SEM分析手段，观察到一定温度和应变速率区间内率相关与率无关变形的位错组态区别，及晶界对位错的不同作用。

Based on the microscopic TEM and SEM observations , relationships between dislocation structure and rate-dependent / rate-independent behaviors under certain range of temperature and strain rate were presented . Interactions between grain boundaries and dislocations were analyzed .

热变形温度和应变速率对45V非调质钢连续冷却转变的影响

Effect of hot deformation temperature and strain rate on continuous cooling transformation for a V-microalloyed forging steel

以计算机计算Al、Cu及0.06C钢在高应变速率下发生剪切时，在剪切带中的温度分布及冷却速率。

The temperature distribution under shear with a high strain rate and the cooling rate of the shear bands of Al , Cu and 0.06 C steel have been calculated using a computer .

为了探讨极化对铝合金SCC敏感性的影响，采用慢应变速率拉伸技术研究了不同恒电位极化条件下7075T6、7075T7351、7075RRA铝合金的应力腐蚀行为。

The behaviors of stress corrosion cracking ( SCC ) of 7075 aluminum alloys with different heat treatments had been tested at various polarization potentials with slow strain rate test ( SSRT ) method .

温轧态2618A铝合金高应变速率超塑性的研究

Study of High Strain Rate Superplasticity of 2618A Aluminum Alloy

用光滑试样慢应变速率拉伸法研究了X60管线钢在含水土壤中的应力腐蚀。

Stress corrosion cracking of an X60 pipeline steel in soil containing water has been investigated using slow strain rate test .

结果表明，应变速率和变形温度的变化影响合金稳态流变应力的大小，在变形温度为350～500℃、应变速率为0.01～1s-1的条件下，随变形温度升高，流变应力降低；

The results show that both strain rates and deformation temperatures control the flow stress .

用拉伸splitHopkinsonbar实验装置进行了SiCp/6061Al复合材料及其基体合金的动态拉伸实验，研究了材料的应变速率敏感性。

A dynamic tensile experiment for a SiCp / 6061AI composite and its matrix alloy in an over-aged state was performed using split Hopkinson bar apparatus , and a study was made on the strain rate sensitivity of their tensile properties .