查询词典 principal stress

The principal stress caused by latitudinal inertial force for a homogeneous earth is Northeast and Northwest oriented.

纬向惯性力引起的应力，在均匀地球的情况下，主应力方向为NE向和NW向。

The soil cutting experiment indicates that the interior friction angle and the shear intensity of soil is reduced;and the maximum principal stress is decreased due to the vibration load;it induces the decrease of digging resistance.

从理论上研究了振动掘削岩土的减阻机理，土壤剪切试验结果表明，振动载荷能够使土壤的内摩擦角变小、抗剪强度下降、最大主应力值减小，从而导致挖掘阻力降低；对土壤在静态载荷和振动载荷作用下的失效过程进行了对比仿真实验研究，可知土壤在振动加载的条件下强度显著下降，并提前于相同条件的静态加载而破坏，同时跟踪X方向的载荷发现，振动掘削最大掘削阻力可降低50%。

A formula of rock resistant coefficient is derived based on unified strength theory, which can be adopted to obtain rock resistant coefficient in other situations or strength thoeries simplified by assuming the parameter value in the formula. The strength differential effect, intermediate principal stress effect and the ground water permeation effect are considered in the formula.

基于统一强度理论，将巷道围岩视为多孔介质，考虑地下水渗流作用的影响，推导出了巷道围岩抗力系数计算统一公式，改变公式中的参数可以退化为其他围岩条件或者其他强度理论条件下的围岩抗力系数计算公式。

Isoclinic angle information of whole-field first principal-stress direction can be analyzed and obtained by two rules of arctan calculation.

根据求解反正切运算的两种规则，分析并获得反映第一主应力方向的等倾角信息。

The effects of Lode parameter and the intermediate principal stress on t...

该模型能够反映不同材料在复杂应力状态下的应力应变关系，有其更为广泛的适用性。

The maximum principal stress is oriented mainly in a NNW direction in the south and in a NNE direction in the north,generally in a N-S direction.

最大主应力方向在南部以NNW向为主，北部以NNE向为主，总体为近SN向。

Influence of intermediate principal stress and content of steel fibre on the strength and strain of concrete is analyzed.

分析了中间应力以及钢纤维含量对极限强度和极限应变的影响。

It was reasonable to establish the relationship between the Poisson's ratio and the principal stress ratio.

在工程勘查中，根据土层泊松比值，可以判断土层的密实性，为进一步的

The influences of principal stress axes rotation.on geotechnical engineering attract more and more attention.

主应力轴旋转对岩土工程的影响日益受到人们的重视。

Secondly, the effects of the rotation of principal stress axes on plastic deformation is investigated and deformation patterns are obtained through calculation.

应用本文弹塑性模型，对主应力轴旋转所引起的塑性变形进行理论探讨，分析塑性变形的规律以指导工程实践。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。