保持小主应力、中主应力不变，在大主应力方向加荷是实际工程中可能存在的一种应力路径。
Keeping the minor principal stress and medium principal stress fixed, the loading in the direction of the major principal stress is a potential stress path in practical projects.
研究表明：土体广义剪应力与广义剪应变关系曲线呈明显的非线性，中主应力对土体强度的影响存在区间效应。
The study results show that generalized shear stress has a strong nonlinear relation with generalized shear strain, and intermediate principal stress has interval effect on soil strength.
在土木建筑工程中主应力迹线是布筋方向的依据，但是在工程中通常都是徒手或用曲线板近似绘制主应力迹线。
In civil engineering, the disposing of reinforcing steel bars is often based on the analysis of the principal stress traces.
有机玻璃模型中主应力和的测量，二维气体温度场和轴对称气体温度场的测量，三维物体表面形状和三维位移场的测量。
The research involves the measurements of the sum of principal stresses in a perspex model, gas temperature fields in 2D and axisymmetric cases, 3D surface shape and 3D displacement field.
平面应变条件下土体中主应力之间的关系，其实质是特定应变路径条件下土的应力–应变关系，为土的一个重要力学特性。
The relationship between principal stresses in the plane strain state is the stress-strain relationship of soil with a certain strain path.
结果表明，主应力方向的连续旋转导致了钙质砂中孔隙水压力的增长。
It was showed that the continuous rotation of principal stress induced the development of pore water pressure in carbonate sand.
粗加工中，增加磨削分力比可以增大磨削应力场中的主应力极值，有助于材料的脆性去除。
To increase component of grinding force ratio can increase principal stress extreme values in grinding stress field. Materials can be removed by brittle fracture.
人工裂隙的方向受地应力场中两个相互垂直的主应力分量—最大主应力和最小主应力的制约。
The orientation of the induced hydrofractures arc controlled by the mutually perpendicular orientations of the maximum and minimum principal stress components of in situ stress field.
在模型实验应力分析中采用脆性涂料法确定模型机架最大主应力部位和主应力方向，采用电阻应变测量法确定模型机架的主应力水平。
Stress coating is adopted in order to determine the points and directions of the most main stress of the frame, resistance strain gauge method used for determining main stress value of the frame.
本文介绍了电阻应变片传感器及其主应力公式和在地震予报中的应用。
This paper describes the transducer of the resistance strain gauge, the formulas for its principal stress and the application of the earthquake prediction.
另外，根据试验结果，并利用塑性力学中的主应力法和材料硬化理论，推导了一个计算圆孔翻边力的新公式。
In addition, according to experimental results, slab method in plastic mechanics and material hardening theory, a new formula for hole flanging force is concluded.
通过分析可知，中间主应力在边坡稳定性分析中不容忽视。
By analysis, it can be concluded that the effect of intermediate principal stress in the stability of slope analysis shouldn't be neglected.
安氏II1牙合下颌各牙根尖主应力值均略大于正常牙合，且最高应力值由第一磨牙近中根尖处移至最后一个磨牙根尖处。
The highest value of all apical areas were in the last molar in Angle II1 model instead of medial root of the first molar in normal occlusion.
测量一点的主应力的电测实验是材料力学实验中的基本实验。
The experiment of measuring principle stresses at one point by the strain gauge method is a basic experiment in mechanics of materials.
平面应力状态下最大主应力方向的判定在工程及教学中具有重要意义，应用平面应力理论可以找到判定其方向的快捷方法，并引用实例得到印证。
It is of great significance in engineering and teaching to determine the direction of the largest main stress under the status of plane stress.
通过研究发现，水力裂缝方位不但与井筒在现场地应力场中的方位有关，而且主应力的大小也会影响到裂缝的延伸情况。
The results show that hydraulic fracture propagation is not only related to the orientation of borehole in the stress field, but the magnitude of principal stresses.
通过研究发现，水力裂缝方位不但与井筒在现场地应力场中的方位有关，而且主应力的大小也会影响到裂缝的延伸情况。
The results show that hydraulic fracture propagation is not only related to the orientation of borehole in the stress field, but the magnitude of principal stresses.
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