剪应变

The results show that the main cause of the angular distortion of the lap joint is the non-uniform distributed inherent shear strain component that is vertical to the weld line and exists in the plane paralleling to the weld line.

结果表明：搭接接头焊接角变形的产生主要是由焊缝及其附近区域与焊缝平行的平面内垂直于焊缝方向上不均匀分布的固有剪切应变分量引起的。

The analysis results show that the yield stress of the gel can be exactly obtained by the inflexion of strainstress loglog plot curve under stress control test and the crossover of the linear viscoelastic range and nonlinear viscoelastic range of stress scan test at a fixed frequency.

结果表明，选用控制应力模式的应变-应力双对数曲线拐点和应力扫描测试的线性黏弹区与非线性黏弹区界限能够准确的获取凝胶的屈服应力，凝胶屈服应力在温度低于50 ℃时随温度增加而小幅增加，屈服应力在剪切作用停止后恢复速度快，是有利于堵漏成功的因素。

By using a special two dimensional simple shear test apparatus with rigid lateral platens, simple shear test s are carried out on an assembly of aluminum rods, one of which is then simulated by distinct element method.

用铝棒堆积体作为二维粒状体的模型材料进行单剪试验，然后对其用离散单元法进行数值模拟，对于宏观应力应变关系，两者结果基本吻合。

In order to investigate how randomness of concrete had effects on structural responses by means of experiments, authors carried out a pseudo static experiment on the same four-story 1:3 scaled model of short-leg shear wall structure. Load and displacement curves, strain curves of reinforced concrete and partial relative displacement curves were obtained.

为了从试验角度研究混凝土随机性对结构反应的影响，以4片相同的4层1：3比例缩尺模型的短肢剪力墙结构为研究对象，进行了拟静力试验研究，得到了荷载－位移曲线、混凝土和钢筋的应变曲线及墙体局部相对位移曲线。

The paper examines the load and strain data from a series of single shear pull-off tests,in which CFRP sheet is used to strengthen the concrete with different bond surface treatments.

着重根据粘结－滑移关系曲线分析在不同应力作用下碳纤维布复合材料的应变和应力分布，以及剪应力在界面的传力机理。

Based on the higher-order Cauchy-Born constitutive model, a seriers of infinitesimal mechanical properties and the strain energy for the graphite sheet and SWCNT are studied firstly with the consideration of the influences from tube chirality and radius, potential parameters and the inner displacement.

基于所发展的高阶Cauchy-Born广义连续体本构模型，首先对石墨片和单壁碳纳米管的一系列无限小变形的力学特性(如：轴向和环向模量、泊松比、剪切模量)以及应变能进行了研究，同时也考察了手性、半径、势能参数以及内位移放松等因素对这些力学特性的影响。

By adjusting the zoom and elevate the sampling rate of the CCD camera, we investigate the details of the PLC deformation bands, including the step-like migration of the band, the mode of avalanche-like shearing deformation and the distribution of the strain in the band.

细致地研究了PLC变形带的空间细节，包括PLC变形带传播的步进过程，PLC变形带带内剧烈剪切变形的模式和应变分布。

With analysing the the fatigue mechanism, the general mode of interply fatigue damage propagation is denoted by delamination length and crack density. Based on the power-law, the relationship between number of cycles and delamination length and crack density are established. The specimen is modeled as an equivalent six-ply material system. Starting with the analysis of interply stress, the interply shear stress under cyclic loading is calculated by using nonlinear three-demension FEA. According to the stage regularity of fatigue damage propagation, such models as average strain, effective modulus, ratio of delamination length and crack density, experimental relationship between crack density and effective modulus, are proposed by introducing subsection coefficient.

通过对疲劳机理的分析，确定了以脱层长度和裂纹密度表示的层间疲劳损伤演化的一般模式，利用指数法则建立了脱层长度和裂纹密度随疲劳循环周次变化的关系；从层间应力分析入手，以等效六层的材料模型对循环载荷下的层间剪切应力进行了三维非线性有限元分析；根据疲劳损伤扩展的阶段性，引入分段系数，分别建立了平均应变与载荷循环周次的分段线性模拟模型、有效刚度随载荷循环周次的变化关系模型、裂纹密度变化和脱层长度变化关系随载荷循环周次变化的分段线性模型以及疲劳裂纹密度和有效刚度关系的经验模型。

At the same time,the shearing force,which played a comparatively important role in design,could be directly calculated.

一方面这是一种协调单元，而二节点单元是一种常应变单元；另一方面这种单元考虑了曲梁的横向剪切变

Keywords: blast load;reinforced concrete structure;shear failure;strain rate effect;finte element analysis

中文关键词：爆炸荷载；钢筋混凝土结构；剪切破坏；应变速率效应；有限元分析

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。