查询词典 shear strain

Five main phenomena were found, firstly, the high plasticity clay could well suitable to large deformation, and had strain-hardening behavior obviously, as well as, the little dilatancy; secondly, there was no correlation between stress paths and shear strength but the stress-strain relations were influenced by stress paths; thirdly, the little stress increment ratio, the higher increase speeding of shear stress and breaking strength under the condition of same initial normal stress; the fourth, the relations between normal strain and normal stress in simple shear test was consistent with which in the single-direction compression test, if there was no dilatancy; the last, the curve of relation between stress ratio and shear strain could be well simulated by hyperbola.

试验结果表明，高塑性粘土能够较好地适应大变形，接触面剪应力与切向应变关系呈剪切硬化型曲线，法向剪胀不明显；接触面剪切强度与应力路径无关，应力应变关系与应力路径密切相关；初始法向应力一定，应力增量比越小，剪应力增长越快，对应的破坏剪应力也越高；无剪胀发生情况下，法向应变与法向应力关系曲线与单向压缩试验具有一致性；应力比与切向应变呈良好的双曲线关系。

Yet for thickness shear actuators, due to the shear deformation dominates the plate deflection for shear actuation mechanism, the higher order shear theory can provide more accurate evaluation of the shear strain energy of the plate than the first-order o

但对于厚度剪切型激励器而言，由于激励器主要是引起板的剪切变形，而高阶剪切变形理论比一阶剪切变形理论能更好地反映结构的剪切应变能，因此高阶剪切变形理论可以提供板变形的更为精确的解。

Transverse shear strain is introduced into the strain vector to take transverse shear deformation into account. To avoid shear lock,the one point Gauss integral method is used to compute the stiffness.

复合材料旋转壳体是航空、宇航和造船等常采用的结构形式之一，这类结构常常在轴压和侧压下工作，准确预测此类结构的屈曲临界载荷和破坏模式，具有重要的工程意义[1]。

At the same time, under the condition of small strain, firstly, the secant shear modulus was always larger than the tangent shear modulus. Secondly, when the logarithmic coordinates were applied to describe shear strain, the decrease of shear modulus with shear strain could be expressed by reversed S shape curve with two inflexion points, and through analyzing and validating, the deduced equation could perfectly reflect this characteristic. Finally, different stress paths and strain areas would lead to different attenuation trends.

而且，在小应变范围内，割线剪切模量总是大于切线剪切模量；当剪切应变采用对数坐标表示时，剪切模量随着剪切应变的增加而衰减，且衰减的规律都可以表示为带有两个拐点的反S型曲线，经分析验证本文所得公式3可以对此特性进行很好地反映；但应力路径、应变范围不同其衰减幅度不同。

Firstly, we collected and sorted out the GPS data, established the uniform velocity field for the Chinese mainland and the surrounding regions, and the horizontal deformation field relative to the Eurasia plate; Secondly, we established a motion model for the entire rotation and homogeneous strain of the first and second level blocks in Chinese mainland, analyzed the motion pattern and strain behavior of active blocks in Chinese mainland, as well as the motion pattern of principal fault zones in Chinese mainland; Thirdly, considering the heterogeneity of strain distribution inside a block and supposing that the strain tensor inside the block is the linear function of location, we derived and established an equation for the entire rotation and linear strain of block and a motion model for the entire rotation and linear strain of principal blocks in Chinese mainland; We also calculated the principal strain field and the maximum shear strain field in Chinese mainland and the surrounding regions, analyzed the basic characteristics of strain field in Chinese mainland, as well as the relationship between the spatial distribution of strain field and large tectonic zones; Finally, we established the 2-D geotectonic model and digital model for Chinese mainland and the surrounding regions, calculated the stress field in Chinese mainland and the surrounding regions, and analyzed the basic features of stress field in Chinese mainland and the principal driving force for the motion and deformation in Chinese mainland.

收集整理了已有GPS资料，建立了中国大陆及周边地区统一的速度场以及相对欧亚板块的水平形变场；建立了中国大陆一、二级地块整体旋转与均匀应变的运动模型；分析了中国大陆活动地块的运动状态，应变状态，以及中国大陆主要断裂带的运动状态；考虑到一个块体内部应变张量空间分布的非均匀性，假设块体内部的应变张量是位置的线性函数，推导建立了块体整体旋转与线性应变方程，建立了中国大陆主要地块整体旋转与线性应变的运动模型；计算了中国大陆及周边地区的主应变场与最大剪应变场，分析了中国大陆应变场的基本特征，以及应变场的空间分布与大型构造带的关系；建立了中国大陆及周边地区二维的地质构造模型和数值模型，计算了中国大陆及周边地区的应力场，分析了中国大陆应力场的基本特征以及中国大陆运动、形变的主要驱动力。

A "successive integration method" was firstly applied to the calculation of the plastic strain in large deformation analysis. By this method, it is easily to distinguish different resolved shear stresses and shear strain rate in different slip systems.

将"连续积分方法"首次应用到大变形弹塑性有限元分析中，使得晶体塑性模型能够区分出不同滑移系上分解剪切应力及相应产生的剪切应变，更好地反映金属材料塑性变形的微观特性。

Under the condition of small strain, anisotropy is shown; however, the anisotropy degree decreases with the increase of shear strain, and the approximately isotropy is got. At the same time, the effect of stress path circumgyration on shear modulus decreases gradually along with the increase of shear strain.

在小应变条件下，土体表现出各向异性，但随剪切应变的增加而逐渐减小，最终表示为近似各向同性；同时由应力路径旋转对模量的影响也随着剪切应变的增加而逐渐衰减。

The test object was remolded soil after K0 consolidation. Using advanced stress path triaxial system, STDTTS+UNSAT (7kN/1700 kPa) produced by GDS of UK, the effect of stress path circumgyration on shear modulus and the trend of shear modulus along with variation of shear strain under small strain were studied. Some conclusions were drawn.

以重塑土经K0固结形成的试样为试验对象，采用英国GDS公司生产的STDTTS+UNSAT (7kN/1700 kPa)型号高级应力路径三轴测试系统，研究了在小应变范围内应力路径旋转对土体剪切模量的影响以及剪切模量随应变变化的趋势。

The developments of four strain components and the volumetric strain with number of cycles, the relationship between shear stress and shear strain and the effects of deviatoric stress and effective mean normal stress were studied.

着重分析了4个应变分量及体应变随应力主轴循环旋转周数的变化关系、剪应力剪应变关系以及所施加的剪应力水平和有效球应力在应力主轴循环旋转过程中对砂土变形特性的影响。

The fundamental feature of this procedure is the modified relationship of stress and strain by residual shear strain potential and residual volumetric strain potential in dynamic time-history analysis. In the meanwhile, the effect of the residual dynamic pore water pressure on the maximum shear modulus is considered.

该方法在动力时程分析中重点考虑了逐渐累积的残余剪应变和残余体应变对应力应变关系的软化效应，同时考虑了各时段残余振动孔压引起的最大动剪切模量的衰减效应。

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。