How sell the metal forms will be governed by the strain-hardening exponent and average strain ratio.
如何选模由加工硬化指数和平均应变比例所决定。
Thirdly, plastic strain ratio and strain hardening index are the two key parameters of material's formability.
塑性应变比与应变硬化指数是评价板料成形性能的两个重要参数。
Uniaxial prestrain will obviously improve the forming limit on positive strain ratio zone, while it has little effect on negative strain ratio zone.
单拉预应变路径将显著提高正应变比区的成形极限，而对负应变比区的成形极限影响不大。
Some macroscopic and microscopic factors such as strain ratio, the content of VA and crystallinity, which influence the shape-memory properties, were studied.
通过对形状记忆性能和凝胶含量的测定等重点探讨了拉伸比和乙酸乙烯（VA）含量对其形状记忆性能的影响。
Equiaxial prestrain will obviously decrease the forming limit on positive strain ratio zone, while it slightly improves the forming limit on negative strain ratio zone.
等双拉预应变将明显降低正应变比区的成形极限，对负应变比区的成形极限有所提高。
The composite was a type of strain rate sensitive material. With the increasing of strain ratio, the yield strength of composite increased firstly and then decreased,...
复合材料是应变率敏感的材料，随着应变速率的增加，其屈服强度先增高后降低，而其单位体积吸收的能量则呈上升的趋势。
The relationship among many factors are obtained on the creep behaviour of sedimentary soft rock, such as axial strain, axial strain ratio, axial stress, and axial stress ratio.
系统地把握了多种软岩在不同条件下的强度、变形特性，探讨了各种软岩的变形、变形速率、时间依存性等影响因素，为预测软弱岩体的长期力学稳定性提供了重要依据。
Yield strength and ultimate tensile strength, work hardening exponent and normal anisotropy of plastic strain ratio decrease but planner anisotropy of plastic strain ratio increases.
屈服强度、抗拉强度、加工硬化指数和塑性应变比厚向各向异性降低，塑性应变比平面各向异性增大；
The relationships between strain rate and the elastic modulus, critical strain, Poisson's ratio and energy absorption capacity of concrete are still studied.
分析了应变率对混凝土弹性模量、峰值应力时的应变、泊松比和混凝土吸能能力的影响。
Raising the testing strain rate, the strength and yield ratio increased the plasticity slightly decreased, but the strain rate hardening index kept constant.
应变率增加，材料强度提高，屈强比增大，塑性略有降低，但流变阶段应变率强化系数基本不变。
In the system, the wavelength code of strain is converted into the signal intensity, and the ratio of the signal intensity and the referent light intensity is used as the measuring value of strain.
该系统利用斜线光纤光栅将光纤光栅应变传感的波长编码信息转换为强度，并且用信号强度与参考光强度的比值作为应变的度量值。
Moreover, this paper analyses the shear strain and compressive stress and loading frequency dependence of the damping ratio.
另外，对叠层橡胶支座的阻尼比随剪应变、压应力及荷载频率的变化情况进行了分析。
With the reducing of pore pressure, the apparent viscosity of post-liquefied sand increased with increasing of strain and decreasing of pore pressure ratio.
随着液化后孔压的降低，砂土的表观粘度随应变的增大而增大，随孔压比的减小而增大。
In this paper, we study the function between the coupling ratio of the single mode fused optic fiber coupler and the strain via cantilever.
本文利用悬臂梁对单模熔锥光纤耦合器的耦合比与应变的关系进行了研究。
The permeability coefficient is dependent on the plastic shearing strain (ratio).
渗透系数依赖于塑性剪切应变(率)。
The results indicate that the relationship between stress ratio and strain incremental ratio in these materials is still a linear relation on the extended moblized plane.
结果表明，在扩展强度发挥面上，这几种材料的应力比与应变增量比之间仍具有线性关系。
When the dry density is relatively high, this dense specimen shows shear dilatation characteristics, and the effective principal stress ratio tends to be strain softening phenomenon.
干密度值较高时，土样处于密实状态，表现出剪胀特性，有效主应力比-应变曲线近于应变软化型；
We go deep into discussing the studies on structural damage detection based on modal strain energy, and propose a new damage detection index based on the change of modal strain energy ratio.
在此基础上对基于模态应变能的损伤识别方法进行了深入探讨，并提出了基于模态应变能比变化率的损伤识别新指标。
Based on the shape factor and the effective Poisson ratio an effective method to transform from lateral strain of funnel-like specimen to axial strain of standard specimen is developed.
基于形状因子与等效泊松比的原理，建立了——漏斗型小试样径向应变向轴向应变换算的等效方法。
A new model_based method for structural damage detection, which is based on the theory of dissipation ratio of modal strain energy, is put forward.
本文提出了基于模态应变能耗散率理论的一种新的结构损伤识别方法。
When the stree strain relationship is the weak hardening, the relationship between stress ratio and strain incremental ratio shows the straight line with two different slopes.
当材料的应力应变关系为弱硬化型时，应力比与应变增量比关系为两段斜率不同的直线；
The theoretical and experimental results show that the Damage variable is linear with equivalent strain and it is affected remarkably by the triaxiality stress ratio.
理论分析与实验结果表明，损伤变量与相当应变呈线性关系，并且其值受应力三轴变的显著影响。
However, Poisson ratio does not influence the plastic volumetric strain in the stage of strain softening.
在应变软化阶段，泊松比不影响塑性体积应变。
For plastic deformation theory, it is assumed that the plastic strain tensor is proportional to the total strain deviation tensor and the ratio is a sealer 'function of the effective total strain.
对于形变理论，假定塑性应变张量与总应变偏量张量成比例，其比例因子是总有效应变的标量函数。
The result compared to the resistance strain gauge used widely in structure indicates that not only the coupling ratio of the coupler is sensitive to strain, but also the function is monetary.
与电阻应变片的对比实验表明单模熔锥耦合器的耦合比不但对应变敏感，而且变化有单调性。
With the strain aging temperature increasing, strength and hardness increases, plasticity and toughness decreases, yield ratio has the ascending trend, hardening index decreases.
随着应变时效温度升高，强度和硬度增加，塑性和韧性下降，屈强比呈升高的趋势，形变强化指数降低。
At the same strain level, the damping ratio of LCES is smaller than soft clay's, and it decreases to a quite low level with high cement content and low EPS content.
在相同的动应变水平下，LCES的阻尼比比粘土要小，提高水泥含量并降低EPS颗粒含量后，LCES的阻尼比显著减小。
When the ratio not more than 0.2, CFRP tensile strain can reach or exceed the permissible strain at ultimate capacity state, and therefore CFRP can work efficiently.
当配筋特征值不大于0.2时，承载能力极限状态下碳纤维片材的拉应变可以接近或超过允许拉应变，因此可以有效地对受弯构件正截面承载力进行加固；
When the ratio not more than 0.2, CFRP tensile strain can reach or exceed the permissible strain at ultimate capacity state, and therefore CFRP can work efficiently.
当配筋特征值不大于0.2时，承载能力极限状态下碳纤维片材的拉应变可以接近或超过允许拉应变，因此可以有效地对受弯构件正截面承载力进行加固；
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