At the neutral axis the principal stresses will occur at a 45 ~ Angle.
在中立轴主要重音将发生在45 ~角度。
To answer this question, we need to plot trajectories of principal stresses.
研究了一种简便快速的主应力迹线自动化绘制方法。
The principal stress traces represent the directions of principal stresses inside an object.
主应力迹线是代表主应力方向的曲线簇。
Analysis of the twinning of calcite, and the stylolites shows that the principal stresses are nearly horizontal.
方解石变形双晶、压溶缝合线等显微构造分析结果，一致表明区内引起变形的主应力近于水平。
The stresses component, principal stresses and effective stress on the surfaces of thin plate or shell structures.
薄壁板壳结构表面的应力分量、主应力和有效应力。
With proper design, the grain flow can be oriented in the direction of principal stresses encountered in actual use.
通过适当的设计，可以使晶粒流动方向与实际使用时的主应力方向一致。
And the spatial failure region becomes smaller with the increased values of the middle and minimum principal stresses.
随着中间主应力和最小主应力的增加，空间弱面破坏角度范围具有变小的趋势。
Horizontal maximum and minimum principal stresses are nearly equal in shale formation, and very different in sand formation.
在泥岩段水平最大与最小主应力基本相等或相差甚小，在砂岩段才呈现较大差异。
Recently progresses have been made using the relationship between magnetic output and principal stresses difference under uniaxial stress.
利用单向应力下磁输出信号与主应力差间的关系，即主应力差法，国内外已取得了一定的成果。
The relationship between principal stresses in the plane strain state is the stress-strain relationship of soil with a certain strain path.
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。
And, the principal stresses can be easily found by combination of above results with isochromatic pattern found in photoelastic experiments.
结合光弹性实验等差线条纹图，可分离出主应力。
The Mohr-Coulomb model is based on plotting Mohr's circle for states of stress at failure in the plane of the maximum and minimum principal stresses.
莫尔-库仑模式基于莫尔圆来判断最大和最小主应力平面上的破坏应力状态。
Reasonable program for field pumping and rejecting development is put forward according to magnitudes and orientations of the maximum and minimum principal stresses.
依据最大、最小主压应力大小和方向，为油田注采开发等提供合理化方案。
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。
By coordinate transformation of stress we have the differential relationship between the principal stresses and stress components to facilitate deviation calculation.
利用应力的坐标变换关系，推导出主应力与应力分量之间的微分关系，使主应力的精度计算更加简便。
The fault movement and the direction of principal stresses may be determined by considering the relationship between the different secondary structures and en-echelon patterns.
因此可以通过这些次级构造和雁列类型的关系，来判断断层的运动和主应力方向。
This paper advances a direct observational method to determine two principal planes corresponding with two principal stresses Belng simple and obvious, this method ean be mastered easily.
本文提出关于平面应力状态单元体上两个主平面与两个主应力对应关系的直观判断方法。
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.
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 spatial variability in permeability plays an important role in the coupled hydro-mechanical processes of the fractured rock mass and induces a discontinuous distribution of principal stresses.
渗透系数的空间变异性使得隧道开挖后围岩应力有明显的非连续性，对裂隙介质的耦合过程起着重要作用。
Water content wand initial average principal stress pm0 have significant influences on the initial dynamic shear modulus of undisturbed loess under the condition of pre-shearing stresses.
含水率与初始平均主应力对预剪应力作用下原状黄土的初始动剪切模量具有显著的影响；
Decreasing of the minimal horizontal principal stress, or more, may he responsible for a trigger of the earthquake associated with a change in stresses.
应力改变触发地震的机制，主要是由于最小水平主应力的减小，或两个水平主应力同时减小。
The degrees of effects of water content wand initial average principal stress pm0 on the dynamic shear modulus of undisturbed loess reduce under the condition of pre-shearing stresses.
存在预剪应力作用时，含水率与初始平均主应力对原状黄土动剪切模量的影响程度降低；
The degrees of effects of water content wand initial average principal stress pm0 on the dynamic shear modulus of undisturbed loess reduce under the condition of pre-shearing stresses.
存在预剪应力作用时，含水率与初始平均主应力对原状黄土动剪切模量的影响程度降低；
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