查询词典 contraction of tensor

MSG and SG theory are generalized to compressible material based on a new decomposition of strain gradient tensor, because the original MSG and SG theories are only suitable for incompressible materials.

因为原先的MSG和SG理论只能适用于不可压缩材料，所以在重新分解应变梯度张量的基础上，本文把MSG和SG理论拓展到可压缩材料。

This includes the surface mounted and embedded optical fibre damage detection system, the use of fiber optic strain sensors for monitoring acoustic emission from within composite specimens , and a fiber optic strain rosette for maping the strain tensor within a composite structure.

介绍了光纤传感器在飞行器结构上的应用，包括表面贴装与内埋光纤损伤探测系统，内埋的监测复合材料内部声波辐射的光纤应变传感器及测量复合材料内应变张量的应变计。

MSG and SG theory are generalized to compressible material based on a newdecomposition of strain gradient tensor,because the original MSG and SG theoriesare only suitable for incompressible materials.

因为原先的MSG和SG理论只能适用于不可压缩材料，所以在重新分解应变梯度张量的基础上，本文把MSG和SG理论拓展到可压缩材料。

As the forged ratcheting considering cycle loading with hypoplastic model isproduced, intergranular strain tensor considering contact deformation of grains is introducedin hypoplastic model.

7对于亚塑性模型在模拟考虑循环荷载作用产生伪造的棘轮效应，引入了考虑颗粒之间接触变形的粒间应变张量的进行改进。

Using the coordinate transform method, the strain tensor transformation relation and the objectivity hypothesis, the rational forms of Darcy' law in both spatial description method and material description method are derived respectively, as well as the seepage coefficient expression for large-strain deformation coupling.

采用坐标和应变张量变换方法以及客观性假设，分别导出Darcy定律在空间和物质描述两种情况下的合理形式，同时还推导变形耦合情况下大变形法渗透系数的表达式。

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。

And we need to specify all of the terms of the stress tensor.

我们需要指明的所有条款的应力。

Diffusion is related to the stress tensor and to the viscosity of the gas.

扩散，是关系到应力和粘度的气体。

In CFD the stress tensor terms are often approximated by a turbulence model.

在计算流体力学中的应力计算，往往是近似由湍流模型。

This stress - energy tensor can only be defined in

应力-能量张量在

Eight cases of simple chordee of penis were adopted urethral extending.9 cases of severe simple chordee of penis were adopted primary urethroplasty.

8例单纯性阴茎下弯患者采取尿道延伸术，9例重度阴茎下弯患者采取切断尿道矫直阴茎一期尿道成形术。

She is a daintily dressed young lady.

她是个装饰娇艳的少女。