在应变软化阶段，泊松比不影响塑性体积应变。
However, Poisson ratio does not influence the plastic volumetric strain in the stage of strain softening.
泊松比是推测地球内部物质构成的有效参数之一。
Boisson's ratio is one of the effective parameters to deduce material composition of the earth interior.
干燥与饱水岩样的动、静泊松比变化规律性较差。
The variation of their dynamic and static Poisson's ratios is not regular.
本文叙述了用于测定动变形模量和动泊松比的三轴试验设备。
This paper describes the triaxial test system which was designed for determining dynamic modulus and poisson's ratio.
负泊松比多胞材料具有独特的力学性能，有着良好的应用前景。
Cellular materials with negative Poisson's ratio have unique mechanical performance and a promising prospect of applications.
对泊松比及渗透系数的参数敏感性分析也得出了一些有益结论。
The sensitivity analysis for Poisson's ratio and coefficient of permeability has given some beneficial conclusions.
得到了水泥砂浆石的动态泊松比、动态杨氏模量、动态压缩强度。
The dynamical Poisson ratio, dynamical Young's modulus and dynamical compressive yield strength were obtained.
探讨了管道净间距、直径、埋深以及土体泊松比对附加荷载分布的影响。
The influences of pipe net spacing distance, pipe diameter, buried depth and soil's Poisson ratio on the distribution of superimposed load are discussed.
而对于致密含气砂岩，纵、横波速度比及泊松比对流体变化相对较为敏感。
For the tight sandstone containing gas, only velocity ratio of P wave to s wave and Poisson ratio are sensitive to fluid variation.
分析了不同埋深、不同泊松比对位移场的影响、不同埋深对应力场的影响。
The influence of the displacements due to different depth and different Poisson's ratio was discussed, and the influence of the stresses due to different depth was discussed too.
理论分析也认为混合料泊松比是温度和应力状态的函数，验证了试验测试结果。
The theoretical study also shows that HMA Poisson's ratio becomes the function of temperature and stress at high temperature of large load, and validates the test results.
同时，指出了近似解析解的局限性，揭示了膜材料的泊松比对结果有较大影响。
At the same time, the limitation of the approximate analytic solution is pointed out because the Poisson ratio of the film materials has strong effect on the results.
通过选择两组不同的虚位移场，可以反算出材料的力学参数：杨氏模量和泊松比。
By selecting two groups of different virtual displacement field, elastic parameters (Young's Moduls and Poisson's ratio) can be inversed.
峰后泊松比与轴向压应力之间的关系可能是一条直线，也可能是上凸的，或上凹的。
It is possible for linear, upwards concave or upwards convex relations between the post-peak Poisson's ratio and the flow compressive stress.
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。
The relationships between strain rate and the elastic modulus, critical strain, Poisson's ratio and energy absorption capacity of concrete are still studied.
根据土的弹性模量和泊松比满足双曲线关系，给出了弹性模量和泊松比折减的基本原理。
The reduction theory for elastic modulus and Poisson's ratio is given according to the stress-strain hyperbolic curve of the soil.
将透射频谱的理论值与实验值实现最佳拟合，具体反演得到了金属板的杨氏模量和泊松比。
Based on the best matching between the computed and the measured transmission spectra, the Young's modulus and Poisson's ratio of the plate are reconstructed.
另外，基于该模型，可分析界面层厚度、弹性模量和泊松比对混凝土相对弹性模量的影响。
Based on the model, the influence of the thickness, elastic modulus and Poisson's ratio of the interfacial transition zone on the relative elastic modulus of concrete is analyzed in detail.
采用双轴拉伸试验方法测定了PVC膜材的广义泊松比，验证了广义泊松比的非线性特征。
The generalized Poisson's ratio is measured using the results of biaxial tensile tests of PVC membrane materials, which verifies the nonlinear characteristics of generalized Poisson's ratio.
如果和动光弹等色线结合，可以同时获得被测材料的弹性模量、泊松比、材料条纹值参数。
By combining with dynamic isochromate pattern, the elastic modulus, Poisson's ratio and dynamic material fringe value of the material measured can be obtained by the method.
并考虑了在整个加载过程中混凝土泊松比保持不变与在加载后期泊松比发生变化两种情况。
And also considered two cases of the concrete Poisson's ratio: remaining unchanged during the loading process and changed at the later stage of the loading.
以一些数值结果说明介质的泊松比、断层面的倾角、上界和下界对地面的地震位移场的影响。
Some numerical examples are presented to illustrate the effects of Poisson ratio of the medium, the dip angle, upper and lower boundary of the fault, to earthquake dis-placement field on surface.
泊松比的变化与试样的体积变形密切相关，从体积变化趋势中可以分析出泊松比的变化范围。
The variation of Poisson's ratio was related closely with the change of volume of specimen. The range of variation for Poisson's ratio could be analyzed from the change of volume.
利用阻抗、速度、泊松比等弹性参数和叠前振幅、频率属性可对裂缝密度和方位进行定量预测。
Elastic parameter such as impedance, velocity, Poisson ratio etc. and pre-stack amplitude, frequency attributes can be used to quantitatively predict the fracture density and direction.
本文引入等效切线模量，给出了泊松比影响因子，建立了在有限元分析中使用方便的本构关系。
In this paper, equivalent tangent modulus is introduced, Poisson ratio effect factor is obtained, Constitutive relation to be easy use in finite element analysis is founded.
通过对两地区部分岩心的测试，得出了岩石泊松比、杨氏弹性模量和抗拉强度等岩石力学参数。
Based on testing of partial cores taken in two areas, some rock mechanical parameters such as Poison's ratio, Young's modulus, tensile strength are determined.
分析结果表明，增加人工脱粘层面积可导致药柱头部应力增大，增加泊松比也会加大药柱应力。
The results showed that the increase of the area of the manmade debonding and the Poisson's value could lead the increase of the propellant's stress.
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。
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。
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.
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