查询词典 principal stress

The influential soil constitutive models involving principal stress axes rotation, such as Matsuoka's model, kinematic hardening model, bounding surface model and the complete stress incremen...

对当前较有影响的含主应力轴旋转的土体本构模型（基于一般应力空间的土体本构模型、运动硬化模型、边界面模型、土体弹塑性应力应变关系的完全应力增量表述等等）进行了较为系统的评述。

To increase component of grinding force ratio can increase principal stress extreme values in grinding stress field.

根据工程陶瓷材料的珩磨加工特征，分析了陶瓷材料珩磨加工机理。

Fricative material, non-linear, generalized strength theory, twin shear uniform strength theory, intermediate principal stress, hydrostatic stress.

摩擦材料；非线性；广义强度理论；双剪统一强度理论；中主应力；静水压力

The whole variable features and regularities of geo-stress field are summed up in Xiluodu deep-cutting gorge. The results reveal that the major and minor principal stress of measure point increase lineally with the vertical depths in the gorge area, and also indicate that the coefficient a〓, a〓, b〓, and b〓 of the linear equation are changeable with the erosion depth of rock mass.

认为该峡谷区中，谷河底部最大、最小水平应力量值总体上具有随深度增加而线性增大的特征，但其线性方程的系数a〓、a〓、b〓、b〓，随地表高程的低高或者说河谷侵蚀厚度的深浅而变化；岸坡山体中仅存在应力降低区和应力相对平稳区而没有明显的应力增高区，应力降低区与应力相对平稳区的分界线在水平埋深135～165m之间。

Second, by analyzing the strain of northsouth blocks of the fault, we find an asymmetric displacement distribution between the two sides of the rupture, and the two blocks are subject to compressional and tensional stress respectively. It is a pattern that cannot be explained with the linear elastic theory. However, laboratory experiments and in situ measurements in boreholes have shown that many crustal rocks exhibit a nonlinear elastic behavior in compression and tension with a dependence of the Young's modulus on the minimum principal stress. So we suggest that the nonlinear displacement distribution should be considered when dislocation and hypocentral parameters are analyzed.

进而通过对地震南北盘同震应变的分析，发现了昆仑山地震的南北两盘分别受挤压和拉张两种应力作用，研究表明多种岩石在拉张和压力作用下其最小主应力下的杨氏模量表现出非线性弹性特征，从而提出对昆仑山地震地表位移及震源特征参数分析时应考虑非线弹性介质导致的非线性弹性位移分布特征。

The failure criterions of principal stress, octahedral stress and strain space are established.

建立了主应力、八面体应力和应变空间的混凝土破坏准则。

In addition,respective failure criteria for mass concrete in principal stress space and octahedron stress space are proposed.

这就要求在设计中考虑实际应力下大体积混凝土的强度及变形情况，制定出更合理的规范。

The position of the maximum principal stress occurred in odontoid. The position of the maximum Von Mises stress occurred in C3-4 and C7-T1 except at -15° angle with helmet.

椎间盘最大的Von Mises应值，除撞击角-15°有佩带安全帽时发生在C7-T1处，其他的情况则发生在C3-4的地方。

The soil static and dynamic universal triaxial and torsional shear apparatus which can simulate the cyclic stress characteristic of sand on seabed is used to perform experimental tests of loose carbonate sand s with a relative density of 30% subjected to vertical-and-torsional coupling cyclic shear with the rotation of principal stress axes induced by ocean wave.

利用土工静力-动力液压三轴-扭剪多功能剪切仪模拟海洋波浪的加载形式，对相对密度为30%的钙质砂进行了扭转和竖向耦合循环剪切试验，着重研究了复杂应力状态下初始主应力方向角α0和中主应力系数b对钙质砂动强度特性的影响。

Automatic technique of stress separation is discussed after obtaining the value and direction of secondary principal stress of every frozen slice.

在三维冻结应力模型切片的应力信息自动获取后，本文讨论了应力分离实现自动化的问题。

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。