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。
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。
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。
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。
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。
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。
Experimental study on stress-strain curves of compressive solid concrete brick masonry;
混凝土普通砖砌体受压应力-应变曲线试验研究
Experimental study on the stress-strain curve of air-entrained concrete;
引气混凝土的应力-应变曲线试验研究
Complexity of shear band patterns and discreteness of stress-strain curves;
剪切带图案的复杂性及应力-应变曲线的离散性
Realization of sheet metal stress-strain curve based on vision technology;
板材应力应变曲线视觉测量技术的实现
Then,stress-strain curve of each specimen with same scale is simulated on condition that the static water pressure is 5 MPa and that the axial pressure is operated step by step.
在5 MPa围压下,对试件轴向分级加载,获得同一尺寸下每个试件的应力-应变曲线,分析每组10条应力应变曲线及数据随试件尺寸的变化规律。
Both the circle stress scale on the curve and the S-N critical stress of σ_(cr) Ⅰmodel crack propagation show certain actual stress on the stress-strain curve of material.
疲劳寿命S-N曲线上的循环应力幅值S和板中的Ⅰ型裂纹半长ac以及裂纹扩展时的临界应力σcr都是材料应力应变曲线上的某个实际应力σ,以应力σ=σcr=S为参变量,就能建立起疲劳寿命N与Ⅰ型裂纹半长ac之间的函数关系,用此关系确定的ac就是疲劳寿命N的折算裂纹长度。
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。
Experimental study on the stress-strain curve of recycled concrete;
再生混凝土应力-应变全曲线试验研究
Using the ordinary compression testing machine with attached rigid auxiliary frame,uniaxial compression experiments for the reactive powder concrete were conducted;the characteristics of stress-strain curves with different water-cement ratio and different content of steel fiber were studied and compared.
采用普通压力试验机附加刚性辅助架的方法对活性粉末混凝土进行了单轴压缩试验,分析和研究了不同水胶比和钢纤维掺量下的应力-应变全曲线的特征。
The cubic compressive strength and the stress-strain curve under uniaxial compression were measured and the flexural tensile strain was recorded using a dynamic strain indicator.
针对橡胶集料混凝土的抗压及抗弯性能,在500/~1500/橡胶集料体积掺量下进行立方体抗压强度以及单轴受压应力-应变全曲线试验,并利用动态应变仪测量了4点弯曲状态下的拉应变。
Nonlinear Finite Element Analysis of the Complete Stress-Strain Curves of High Strength Concrete Column Confined by Stirrups
箍筋约束高强混凝土柱应力应变曲线的非线性有限元分析
EFFECTS OF PORE-WATER PRESSURE ON TRANSITION OF ROCKMASS STRESS-STRAIN CURVES AND THE MECHANISM OF RAINFALL-INDUCED LANDSLIDES
岩体应力应变曲线转型的孔压效应与降雨滑坡的机制分析
The results show that the micro- yield stress in surface layer is related to looding method and the stress-strain curve has a double linear character.
结果表明:表面微观屈服应力与加载方式有关;表面变形的应力应变曲线具有双线性特征。
The stress-strain curve soon deviate from the elastic line.
应力--应变曲线将立即偏离弹性线。
Simulation of Strain-strain Curve for EPE Static Compression
EPE静态压缩应力-应变曲线模拟
Study of Shear-lag and Distortion for Thin-Walled Curved Grider with Great Initial Curvature;
大曲率薄壁曲线箱梁剪力滞及畸变效应研究
Research on Stress-strain Curves of Reactive Powder Concrete under Uniaxial Compression;
活性粉末混凝土受压应力应变全曲线的研究
Experimental Study on Whole Stress-Strain Curves of Concrete under Axial Tension;
混凝土单轴抗拉应力—应变全曲线的试验研究
Measurement and description of the stress-strain curves of W-40%Cu alloy
W-40%Cu合金应力-应变曲线的测定与描述
Establishment and analysis of equivalent stress-equivalent strain curves of sheet metal
板材等效应力-等效应变曲线的建立及分析
Experimental study on the stress-strain curve of Autoclaved Aerated Sand Lime Concrete
灰砂蒸压加气混凝土应力—应变全曲线的试验
Results The stress-relaxation and creep data were obtained.
结果得出了肾动脉的应力松弛,蠕变数据和曲线。
Experimental Research for Complete Stress-Deformation Curve of Concrete in Unixial Tension;
混凝土单轴拉伸应力～变形全曲线试验研究
Experimental Study on Creep Curvature of Full-prestressed Concrete Beams with Pretensioned Bent-up Tendons
折线先张全预应力混凝土梁徐变曲率试验研究
Experimental research on deformation properties and stress-strain curve of C30 recycled concrete
C30再生混凝土变形性能及应力-应变曲线试验研究
STUDY ON STRESS-STRAIN CURVES OF SHIPBUILDING STEEL BEFORE DYNAMIC RECRYSTALLIZATION PEAK STRESS
船板钢动态再结晶峰值应力前流变应力曲线模型的研究
Test of the Dynamic Triaxial Stress-strain Hysteresis Curve of the Sand Soil and Study of its Characteristics of Dynamics
砂土动三轴应力应变滞回曲线试验及其动力特性研究
Meanwhile, the whisker orientation affects the shapes of the stress strain curves of the composites.
同时晶须取向也影响复合材料的热压缩应力-应变曲线的形状。