应力应变曲线

沥青混凝土具有弹塑性变形的特征，其应力应变曲线基本符合双曲线模型（DuncanChang）；

It has the characteristic of elastic deformation and its stress-strain curve basically meets hyperbola model ( Duncan-Chang ) and ;

利用Gleeble1500热力模拟试验机对6063铝合金（400℃～520℃）的不同应变率和应变了进行了热力模拟试验，获得了6063铝合金的真实应力应变曲线和方程。

By using Gleeble-1500 thermomechanical simulator , compressed tests of aluminum alloy are made in certain temperature , at certain strain rate and strain , the true stress-strain curve and equation of 6063 aluminum alloy are gained .

本文按三轴试验结果，采用对数曲线拟合应力应变曲线，用抛物线拟合弹性模量应力水平曲线，其相关系数R均在0.95以上。

According to triaxial test results , this paper adopts the logarithmic curve for the fitting of stress-strain relations , using parabola for the fitting of elastic . modulus-stress level relations .

应用Kolmogorov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。

Stage features of sandstone specimens are studied by a nonlinear dynamics method of Kolmogorov entropy .

结果表明Gr／Al的应力应变曲线可分为两个部分：非线性弹脆性变形以及材料失稳后的残余变形。

The experimental results show that complete stress strain curves of the material can be divided into two parts : the elastical brittle deformation and residual deformation .

得到SFRC在中应变率范围内的抗拉（四点弯拉、劈拉）全过程应力应变曲线。

By this system , the complete stress strain curve for SFRC under intermediate strain rate is obtained .

对软化型应力应变曲线提出用驼峰曲线模拟，对体变曲线也提出用能反映剪胀的驼峰曲线模拟，建立了Q1黄土的非线性弹性K、G模型。

In order to establish the nonlinear elastic model of Qi loess , the hump curve was used to stimulate both the softening stress-strain curve and the volume deformation curve .

并根据不同材料的金属薄板的大量拉伸应力应变曲线，论述测量E、μ、σ（0.2）的一些方法中存在的问题。

In this paper some problems about the methods to measure E 、μ、σ _ ( 0.2 ) will be discussed in terms of a lot of the tensile stress-strain curves of metallic thin sheets of various materials .

普通PPTA纤维和改性PPTA纤维具有近似的应力应变曲线，但后者的弯曲疲劳寿命比前者要长的多。

As-received PPTA fibers ( fiber A ) and modified PPTA fibers ( fiber B ) are found to have similar tensile stress-strain behavior .

介绍了用SHPB装置获得聚碳酸酯冲击压缩应力应变曲线的实验研究，并采用二波法获得了PC材料的应力应变曲线。

This paper introduces the experimental study using SHPB apparatus for acquiring polycarbonate ′ s stress-strain curve under compressive impact loading . The stress-strain curve was obtained from incident wave and reflected wave under impact loading .

通过对Q2和Q3黄土的单轴压缩和常规三轴试验研究，对两种黄土单轴压缩曲线和CU剪切的应力应变曲线特征进行分析比较，探讨了两种黄土应力应变本构模型。

On the basis of the uniaxial compressive test and routine triaxial test results of Q_2 and Q_3 loess , the features of strain-stress curves of Q_2 and Q_3 loess are compared .

实验研究了不同粒径的UHMWPE粉末的松装密度，通过冷压成型实验明确了成型压力与压坯密度、孔隙率和压缩比的关系，并获得了UHMWPE粉末的压缩应力应变曲线。

The effect of forming pressure on green density , porosity and compression ratio was investigated through powder cold forming , and the UHMWPE compression strain-stress curves varied with different particle sizes were obtained .

初步探讨了以3D习Sic在拉伸过程中的电阻变化，电阻变化曲线与应力应变曲线趋势大致吻合，表明可用材料的电阻变化作为损伤变量来表征材料的损伤。

Electrical resistance variance of 3D-C / SiC in tensile process was simply studied and found electrical resistance vary curves have the same changing tendency with stress-strain curves and the result show that the electrical resistance variance can be used to characterize the material damage .

对受拉疲劳试验，则得到了S-N方程，应力应变曲线，应变、疲劳变形模量比与疲劳次数关系曲线，其特征表现为三阶段规律；

Through tensile fatigue experiments , some S-N equations , curves of stress-strain , strain-ratios of deformation modulus and strain-number of cycles relationships which comply with the three-stage rules are obtained .

粘土和LCES的动应力应变曲线都符合双曲线的变化规律。

It concludes the works as follows : ( 1 ) The dynamic stress-strain curves of both soft clay and LCES are hyperbolic type .

利用普通SHPB实验系统、双试件SHPB实验系统，对一特种钢材进行了不同应变率历史的动态压缩实验，获得了不同应变率历史所对应的应力应变曲线。

Dynamic compression experiments on a special steel were carried out using a common SHPB system and a two-specimen SHPB system . The dynamic compression stress-strain curves were obtained for different strain rate history .

本文介绍了粘贴各种CFRP片材加固矩形钢梁的试验情况和结果，分析了矩形钢梁在未加固前和加固后的承载力、屈服荷载、碳纤维箍的受力、应力应变曲线。

This article presents the experiment by gluing various CFRP material to reinforce and repair rectangular steel beams and analyzes the behavior of all kinds of rectangular steel beams in ultimate sustainable load , yield load and the strain of U shape CFRP stirrup etc.

通过SHPB实验，获得了MDF水泥和自密实混凝土C45、C55、C65在应变率10~1s~（-1）～10~3s~（-1）范围的应力应变曲线。

Dynamic compressive stress-strain curves of the MDF cements and SCC are obtained at different strain rates from 10s ~ ( - 1 ) to 1000 s ~ ( - 1 ) by SHPB tests .

利用MTS810材料试验机对体积含量为3%的TiC颗粒增强钛基复合材料TP-650及基体钛合金进行了准静态拉伸试验，获得了材料弹塑性变形的应力应变曲线。

The quasi-static tensile properties of TiC particle reinforced titanium matrix composites TP-650 and matrix have been studied by MTS-810 testing apparatus , and the stress / strain curves of composites as well as matrix have been obtained .

随着埋藏深度的及围压的增加，下层Q2黄土的结构可变性逐渐变大，而可稳性变小，在受荷过程中其应力应变曲线表现出较明显的变形硬化特性。

With the increasing of embedding depth and confining pressures , the stabilizability of the microstructure of lower Q2 loess layers was less than its changeability , and the curves types of stress-strain of loess in the process of loading put up the hardening observably deformation properties .

首次对混凝土在侧压分别为0.25fc和0.50fc作用下进行了受拉疲劳试验，得到了S-N方程，应力应变曲线，应变、疲劳变形模量比与循环次数关系曲线。

The tensile fatigue of concrete under a lateral pressure of 0.25f_c and 0.50f_c is achieved respectively , and some S-N equations , curves of stress-strain , relation between strain , the ratios of deformation modulus and the number of cycles which obeys three-stage rules are got accordingly .

猪服装革压缩应力应变曲线的研究

Study on the Compressive Stress Strain Curve of Pig Garment Leather

混凝土全应力应变曲线分析

The Analysis of the Concrete Complete Stress - Strain Curve

晶体应力应变曲线呈两阶段硬化特点；

The stress-strain curves were characterized by two hardening stages .

真应力应变曲线的自动测试

Automatic Measurement of the Actual Stress & strain Curve

汽车薄钢板应力应变曲线及屈服轨迹的研究

Stress-strain curves and yield loci of auto steel sheet

测量了真应力应变曲线。

The true stress - stain curve was measured .

结构钢单向拉伸时的非线性应力应变曲线

Nonlinear tensile stress strain curves of structural steel

一种新型的拉伸应力应变曲线规律研究

Study on a New Type of Tensile Curve

自应力钢管轻骨料砼的应力应变曲线分析

Analysis of stress strain curves on the self stress lightweight concrete filled steel tube