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1)  true stress-strain curve
真应力-应变曲线
1.
However, traditional methods of measurement have consistent limitations in test true stress-strain curves.
材料的塑性和韧性是反应材料特性的重要性能参数,而真应力-应变曲线是材料在拉伸过程中塑性变形规律的真实反映,是确定材料真实破坏强度和材料抵抗形变能力的重要依据。
2)  True Stress-Strain Curves
真应力应变曲线
3)  true stress-strain curve
真应力-真应变曲线
1.
A series of true stress-strain curves under temperatures ranging from 300 to 500℃and strain rates ranging from 0.
1 s~(-1)的条件下一系列真应力-真应变曲线。
4)  Entire range true stress/true strain curve
全程真应力-真应变曲线
5)  strain-stress curve
应力应变曲线
1.
Comparing research results from power spectra and Kolmogorov entropy to three stages of forepart,rear part and whole process of strain-stress curves,the paper finds that Kolmogorov entropy method is satisfied even more.
应用K o lm ogorov熵评价准则,进行砂岩全应力应变曲线阶段特征的非线性动力学研究,定量描述了峰前、峰后和全程三个层次的分段特征。
2.
Taken the fine-grain and high-strength IF steel as the study object,the strain-stress curves were carried out on MMS-300 thermal mechanical simulator with the deformation temperature at 750,800,850,900,950,1 000 ℃ respectively.
5,变形温度分别为750、800、850、900、9501、000℃时的应力应变曲线。
3.
The strain-stress curve were carried out on Gleeble-3800 Thermal Mechanical Simulator with 10 s-1 strain rate,50% reduction and the deformation temperature at 700-1000℃.
以高强IF钢为研究对象,在Gleeble-3800热模拟机上,测定了在变形量为50%,变形速率为10 s-1时变形温度分别为700-1000℃的应力应变曲线。
6)  strain-stress curve
应力-应变曲线
1.
The strain-stress curves were measured using Gleeble 3800 thermal mechanical simulator at strain rates of 0.
结果表明:应变速率为10 s-1,变形量为50%时,应力-应变曲线仅为动态回复型,不因温度的变化而改变类型;当变形温度为950℃时,变形速率越高,铁素体晶粒越大;而当变形温度为850℃时,这种差别比较小。
2.
The strain-stress curve of high-strength IF steel were carried out on Gleeble-3800 thermal mechanical simulator with 10 s-1 strain rate,50% reduction and the deformation temperature at 700~1000℃.
以高强IF钢为研究对象,在Gleeble 3800热模拟机上,测定了在变形量为50%,变形速率为10s-1时,变形温度分别为1000 ̄700℃的应力-应变曲线。
3.
The true strain-stress curve is obtained.
测定各种工艺下的真应力-应变曲线,观察了奥氏体的动态再结晶情况,研究了变形温度与变形速率对奥氏体动态再结晶过程的影响,并结合再结晶动力学理论进行分析,发现高碳钢在1050℃下高变形速率锻造时,所得到的钢球产品具有良好的耐磨性能和抗冲击韧性,从而制定出合理的高碳钢耐磨钢球生产工艺。
补充资料:真应力
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性质:由测量瞬间负荷和截面积计算得到的应力。由于负荷值的变化随时可以读出,但瞬间截面积很难直接读出。因此,一般只能得到工程应力,即由负荷和原始截面积计算所得。真应力是要通过一些假设,才由工程应力的测量后计算得到。习惯上,对真正应力即称为真应力,而对真切应力就称作真切应力。如果作出它的应力-应变曲线,其弹性区域和通常的应力—应变曲线基本重合。进入塑性阶段后,特别是破坏前发生颈缩现象以后,该处的真应力将远高于通常认为的工程应力。

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