查询词典 strain theory

In the paper two k inds of framewo rk of st rain gradient p last icity recent ly developed and their applications are review ed: st rain gradient plasticity for CS solid—— the couple stress theory, strain gradient plast icity for SG solid.

介绍两种应变梯度塑性本构模型： CS 应变梯度塑性理论——偶应力理论、SG 应变梯度塑性理论。

According to the theory of stress-strain relationship of transverse compressive deformation and wood rheological character, it studies the factors about deformation permanent fixation caused by different methods, and analyzes the component change of wood cell wall caused by four physical treatment methods in this experiment. According to the newest research achievements, it is thought that the absolute release of deformation stress and the effective formation of cohesion inside wood are the main reasons of compressive deformation's permanent fixation.

根据木材横纹压缩应力-应变关系、木材流变学特性等理论对木材压缩及变形固定常用方法对形成变形永久固定的主要原因进行了探讨，根据前人对横纹压缩变形的永久固定理论及本实验中使用的四种物理处理方法在处理过程中对木材细胞壁基质物质的变化和表现出的力学特性的影响进行了分析，结合国内外最新研究成果，认为形成木材压缩变形永久固定的主要原因是木材内部变形应力充分释放和内聚力的有效形成。

In this paper the authors proposed a method for surface strain measurement based on fiber speckle, Firstly they analyzed the basic theory and presented a description of this method.

在本文中介绍了一种以光纤模斑谱为基础的表面应变测量方法。

We propose a theory of strain measurement by TCFI, and investigate some phenomena in the experiments.

由于结构的特殊性，双芯光纤干涉系统结构简单，具有良好的温度稳定性。

First, an energy non-local model is presented to derive the constitutive equation of a new strain gradient theory.

首先，提出了能量非局部模型，并由此模型，得出新应变梯度理论的本构关系；其次，由变分原理，得出相应的有限元公式；再次，给出了微压痕硬度的有限元分析方法；最后，将该理论预测结果与经典理论预测结果以及实验结果进行了对比。

Firstly, we discussed measurement technology of ferroelectric hysteresis and field induced strain on theory of ferroelectrics, results of measurement and design of simultaneous measurement system in detail.

首先，本文从理论前提、结果分析和系统设计三个方面，对电滞回线和电致应变的测量技术进行了深入而全面的讨论。

The process of dynamic fatigue damage accumulation was discussed based on residual strain intensity theory and linear degradation criterion.

基于剩余应变强度理论和线性退化准则讨论了断续节理岩体动态疲劳损伤累积过程。

Based on equilibrium equations and stress strain relationships, an effective theory and computational method for the analysis of RC beams strengthened with FRP plates are presented.

该文基于钢筋混凝土结构设计理论中的截面平衡方程和应力应变关系，为 FRP板加固的钢筋混凝土梁的计算提供了行之有效的理论和方法。

So firstly, the flow rules of the plastic shear strain are studied in the frame of the conventional plastic potential theory.

研究发现，在角点奇异性屈服面的非平滑处理方法中，最终推导出的塑性剪应变出现不连续现象。

Aimed at the problem of the salt bed wellbore creep and shrink under the drilling,based on the elasto-plastic mechanics theory and the head creep equation,the new formula of the control wellbore shrink rate was derived with in case of the plane strain and uniform in-situ stress,which was different from the old formula.

针对钻井过程中钻遇的盐层段井眼蠕变缩径问题，利用弹塑性力学理论，蠕变本构方程采用Heard蠕变方程，在平面应变和均匀地应力假设下，推导出控制井眼收缩的钻井液密度新公式，该公式与前人推导的公式不同。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。