stress-strain

According to the tested mechanical performance of coal sample, the plastic softening process of stress-strain curve is thought to be about a cubic curve, and the plastic softening theory about coal layer is used to deduce the inflection equation of roof.

根据煤样力学性能测试结果，把煤柱应力应变曲线的塑性软化阶段近似为三次曲线，应用煤层塑性软化理论，推导出了顶板弯曲方程。

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The test result shows that the stress-strain curves of both materials are almost linear and they have the characteristics of the brittle failure behavior.

研究发现无论是三维机织材料的拉、压，还是二维层合板的拉、压的应力&应变曲线都可近似为直线关系，而且具有脆性破坏的特点；

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The stress-strain curve soon deviate from the elastic line.

应力 -- 应变曲线将立即偏离弹性线.

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The Completess-strain Curves of High Strength Concrete under Direct Tension stress concentration;

高强混凝土的抗拉应力－应变全曲线应力集中；

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It is shown in the static and dynamic compression stress-strain results, the curve has a typical three stages form. There are elastic stage, plastic stage, and close-grained stage after crushing.

从其静-动态压缩应力-应变曲线中可以看出，曲线是典型的三阶段形式，即弹性阶段，塑性阶段，及压溃后的密实阶段。

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The stress-strain curve of frozen soil under uni-axial dynamic loading behaved with strain softening, showing brittle behavior.

单轴动态加载下，冻土应力应变曲线表现为应变软化，显示出脆性材料特征。

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Research and application of mathematical model for hot forming stress-strain curve

金属热变形应力-应变曲线数学模型的研究与应用

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The strain rate has little effect on the compressive stress parallel to the direction of pores.

藕状多孔铜沿平行气孔方向静态压缩时应力—应变曲线受应变速率影响很小.

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The increase of the inclination angle of shear band and its width has an opposite influence on stress-strain curve of specimen after localization occurs.

剪切带倾角和宽度的增加对岩样的塑性性质影响正相反。

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Probability-based cyclic stress-strain curves and estimation method

概率循环应力&应变曲线及其估计方法

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The compressive stress of reinforced concrete for tension strain in its vertical direction

钢筋混凝土受拉在垂直方向产生的压应力

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Relationship of cyclic stress-strain and damage for low-cycle fatigue

低周循环应力&应变关系和损伤

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From stress-strain curve of calcium carbonate crystal, nano-calcium carbonate crystal is strong anisotropy and nonlinear characteristic.

从碳酸钙晶体的应力-应变曲线看，纳米碳酸钙晶体具有强各向异性和强非线性的特性。

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The non-linear finite element analysis for stress-strain of homogeneous dam built in deep alluvion foundation

深厚覆盖层基础均质坝应力变形非线性有限元分析

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Based on the results, some special properties are systematically analyzed: ( 1) the influence of initial consolidation on stress-strain curve;

通过试验成果系统分析可得：（1）初始固结度对应力–应变关系的影响；

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The V-anvil drawing process of large forgings was simulated using FE software, and the stress-strain distributions in the plastically deforming area were compared after different V-anvils drawings.

利用有限元软件模拟了V型砧的锻造拔长过程，并对不同夹角的V型砧压下后锻坯塑性变形区内应力、应变的状态进行比较。

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In addition, three familiar sets of softened compression stress-strain relationship of concrete are showed.

此外, 也给出了常见的三种软化压应力 - 应变关系方程.

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The stress corrosion cracking ( SCC) susceptibility of 2091 Al-Li alloy was studied under tension at slow strain rate by quench aging in various media.

用慢应变速率拉伸试验研究不同冷却介质淬火并时效的2091合金的应力腐蚀敏感性.用透射电镜观察合金的微观组织.结果表明，晶界无析出带（PFZ）随淬火速度的提高而变窄；

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Simultaneously, according to the stress-strain relationships of concrete, the confined effect from hoop steels, tie plate for bond strengthening is discussed.

同时，通过考察核心混凝土的应力-应变关系及发展过程定量探讨加强钢板、梁柱主筋及箍筋对核心混凝土的约束作用。

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After finite element analysis of the coupled thermo-mechanical models of tube tension reducing, the tube deforming rule, the temperature change and the distributions of stress and strain are gained.

通过对管坯变形过程的分析，得到了管坯的成形规律、温度变化及应力应变分布。

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The temperature fields, stress-strain fields for the forming process are simulated with the rigid-viscoplastic direct coupled FEM.

利用刚-粘塑性直接耦合有限元法，通过有限元软件对成形过程温度场、应力应变场进行模拟，为合理确定工艺参数提供了科学依据。

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The stress-strain relation on unidirectional tenson have been given.

给出了单向应力状态下的应力-应变关系；

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The test results show that the fatigue property curve and the cyclic stress-strain curve of LZ50 axletree steel perfectly conform to double logarithm linear relationship.

试验结果表明：LZ50车轴钢的循环疲劳特性曲线及循环应力-应变曲线很好地符合双对数线性关系；

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Experiment of equal biaxial tension for stress-strain relationship of rubber

橡胶等双轴拉伸实验介绍

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Its delicate fiber can not endure the stress and strain of the daily grind.

它的纤细的纤维不能忍受日常磨擦的压力和紧张.

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The test results show stress-strain deformation behaviors as hardening and dilation in high consolidation pressure; it shows as soften in low consolidation pressure.

试验结果表明，在低围压状态下，曲线具有硬化性和剪缩特性；在高围压下，曲线具有软化性。

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A unified numerical expression of the compressive stress-strain curve applicable to concrete is put forward.

研究了自密实混凝土在受压过程中的变形,建议了适用于受压应力 — 应变曲线的数学表达式.

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According to the deformation of shear spinning on conical workpieces, the stress and strain has been analyzed and the new deformation mechanism has been put forward that the forming area of shear spinning should be divided into tension bending zone and rolling zone.

根据剪旋过程的实际情况进行了应力应变分析，对剪旋变形机理提出了新的见解，将剪旋变形区分为拉弯区和辗压变形区。

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Comparisions between measured and predicted stress-strain show that the proposed model can give better results.

模型预测值与实测值的应力应变关系比较表明,本文提出的模型是合理的.

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The basic stress-strain relations are defined with respect to an axially loaded member.

基本的应力 - 应变关系是用承受轴向载荷的构件确定的.

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