峰值应力

建立了峰值应力和稳态流变应力的Sinh－Arrhenius本构方程。

The Sinh-Arrhenius constitutive equations of peak stress and steady-state flow stress are found .

轴向压应力大于0.6～0.8倍峰值应力后，FS的横向拉应变增大，对混凝土起约束作用；

When the axial compressive stress is large than 0.6-0.8 times of peak stress , the tensile strain of FS and the confinement effect on the concrete increases rapidly .

研究了温度补偿应变速率系数Z对热变形流变特性的影响及对流变应力的影响规律，得到了峰值应力σ，与Z之间的关系式。

The relation between the peak stress and Z is obtained .

并通过回归分析得出峰值应力σm、应变εp、动态再结晶临界应变cε与温度补偿因子Z的关系式，从而获得动态再结晶产生的条件及动态再结晶激活能。

And the relation of peak stress σ _m , peak strain ε _p , dynamic recrystallization critical strain ε _c with the temperature compensating deformation rate factor Z have been obtained by regression analysis , and then the condition and activation energy for dynamic recrystallization have been obtained too .

研究空心率、径厚比和FRP层数对组合柱混凝土受力性能的影响，提出了组合柱混凝土峰值应力和峰值应变的计算公式。

Hollow ratio , diameter-thickness ratio and FRP layers , which have influence on mechanical behavior of the concrete of composite columns , are researched in this paper , and this thesis puts forward formulas of peak stress and peak strain of the concrete of composite columns .

由试验结果可知：变形温度对LY11合金的峰值应力影响显著，对稳态应力影响较小。

The experimental results show that the deformation temperature has significant influence on peak flow stress of the semi-solid LY11 alloy and as-received .

通过对素混凝土、钢纤维混凝土和聚丙烯纤维混凝土三种材料进行了SHPB试验，系统研究了对动载下三种材料试件的峰值应力、峰值应力对应应变、韧性指标。

By SHPB test on plain concrete , steel fiber concrete and polypropylene fiber concrete , systematic study was made on the peak stress , its correspondent strain and ductility indictors of the samples of the three materials under dynamic load .

基于峰值应力与饱和棘轮应变的单调抛物率关系及棘轮门槛应力值与温度的线性关系，利用单试样法建立了1Cr18Ni9Ti不锈钢常温和高温下的饱和棘轮演化模型。

Based on the parabolic relation between peak stress and SR strain , and the linear relation between ratcheting stress and temperature , the saturated ratcheting evolution models at room and elevated temperatures were presented by using single-specimen method .

结果表明：在应变速率为0.01s-1、0.1s-1、1s-1（400℃、450℃）和0.01s-1（350℃），其流变应力出现明显的峰值应力，表现出连续动态再结晶特征；

The result shows that the flow stresses have a peak value when the strain rate is 0 . 01s-1,0.1s-1,1s-1 ( 400 ℃, 450 ℃) and 0.01s-1 ( 350 ℃), showing continuous dynamic recrystallization .

对降低鞍座边角处环向峰值应力的探讨

Discussion of Decreasing Circumferential Peak Stress at Joint of Shell and Saddle

船板钢动态再结晶峰值应力前流变应力曲线模型的研究

Study on stress-strain curves of shipbuilding steel before dynamic recrystallization peak stress

大型油罐大角焊缝处峰值应力分析

Analysis of the Stress around the Shell-to-bottom Fillet Welds of Large Oil Tanks

计算接触峰值应力的快速算法

Quick algorithm for computing the peak stress of contact

宽带随机振动峰值应力分析与试验研究

Analysis and tests of the peak value of stress in broadband random vibration

对峰值应力基本特征的分析和讨论

Analysis and Discussion of Basic Characteristic of Peak Stress

峰值应力基本特性分析和讨论

Fundamental Properties Analysis and Discussion for Peak Stress

应变速率对峰值应力的影响与变形温度有关。

Effect of strain rates on peak flow stress is relate to deformation temperature .

研究结果表明，岩样的峰值应力都随着围压的增大而增大。

The results show that peak stress of rock specimens increases with confining pressure .

单搭接接头峰值应力数值模拟的正交法分析

The orthogonal test of numerical modeling on the peck stress distributed in single lap joint

本文介绍一种计算弹性接触问题峰值应力的快速算法&向量锥方法。

A method is proposed to compute the peak stress of elastic contact problems vector-cone method .

分析了变形条件对流变应力、峰值应力及软化系数的影响规律，在相同的应变速率下，随着温度的升高，峰值应力降低；

The influence of deformation parameters on flow stress , peak stress and softening coefficient were analyzed .

得出一次侧各部件相互间的影响，管板的孔桥应力和孔达峰值应力。

Ect of different components , maximum peak stress and minimum ligament stress of tube-sheet were obtained .

尾砂胶结充填体损伤研究表明，不同配比的充填体表现出不同的损伤特性，充填体配比越低，达到峰值应力时的损伤值越小；

The lower the cement-tailing ratio the lower the damage value when stress reaches to peak value ;

冻土的峰值应力和最终应变均随加载应变率的增大而增大。

The peak stress and final strain of frozen soil increase with the increase of loading strain rate .

动态再结晶晶粒随变形温度降低，应变速率升高而减小。随应变速率的提高，峰值应力和峰值应变均升高。

The size of dynamic recrystallization grains decreases with reducing of deformation temperature and rising of strain rate .

岩石的应力–应变全过程曲线以峰值应力为界，通常分为破坏前区和破坏后区2个部分。

The complete stress-strain curve of rock could be divided into pre-failure and post-failure regions according to the peak stress .

考核结构件在宽带随机激励下的强度，需要考察结构的峰值应力响应。

The peak value of stress response is important when the strength of the structure in broadband random vibrations is considered .

分析了植被混凝土的模量、峰值应力与水泥掺入比和龄期的关系。

In this paper , the relationship between the modulus peak stress of vegetation-growing concrete and cement proportion age has been analysed .

并假定断层上的粗糙段及断层上的其它部分具有相同类型的本构律，只是峰值应力不同。

The segments with and without asperity of the fault follow the same type of constitutive law , but have different peak stresses .

通过研究发现，等效线性化处理是区分有限元计算结果中峰值应力的有效手段，只要选择合适的校核线进行正确的应力线性化，可以分解出峰值应力的大小。

If a proper evaluation line is selected on Finite Element calculation to linearize stress correctly , the peak stress can be distinguished .