提出了主应力的偏角误差概念及其计算方法，使主应力方向的精度评定更加真实客观。
Precision estimation of principal direction is more objective by using principal stress deflection error proposed in this paper.
在DCS侧，通过组态的方法，在不增加新测点的前提下实现了汽包集中下降管管孔处主应力的在线计算；
In DCS, configuration is used to accomplish the on-line calculation of main stress of the orifice of the drum's central downcomer.
计算表明考虑中间主应力时圆筒形孔的塑性区半径有明显减少。
The calculation shows that the radius and displacement of plastic zone will reduce when the neutral principal stress is considered.
编制的软件有友好的界面并可用于主应力空间中各种工程材料屈服面和破坏面的模型及计算机辅助教学。
The present users-friendly software can be widely used in establishing the yield and failure surfaces for various engineering materials and the computer aided instruction (CAI).
计算结果表明：中间主应力对构造结构面之间的空间组合规律具有重要影响。
The numerical results showed that the intermediate principal stress weightily affected the spatial combination regularities of different kinds of structure planes.
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。
By coordinate transformation of stress we have the differential relationship between the principal stresses and stress components to facilitate deviation calculation.
依据压裂曲线，利用破裂压力孔隙弹性计算模型，计算得到了在两个水平主应力方向的弹性应变量；
Basing on fractureing calculation model with pore elasticity theory, the elastic strain in horizontal direction has been determined with hydraulic fractureing curve.
本文针对特定的地震层位使用连续介质线弹性有限元模型，计算了研究区内主应力和剪切应力的分布。
The distributions of dominant stress and shear stress in research area of a given seismic horizon are estimated by using linear elastic finite element modeling in continuous medium.
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.
本文通过对稳定构造地区与挤压构造区地球物理测井信息的深度域特征进行分析和对比，提出了一种基于测井信息来计算最大岩石主应力的统计模型法。
Through a comparative study of the distribution characteristics of the geophysical logging information in the structurally stable field and those in the structural compressive field, a statistical m.
可用小主应力拱应力分析计算直接土压力，用大主应力拱应力分析计算间接土压力。
The direct earth pressure should be calculated by analysis of minor principal stress arch while the indirect earth pressure by analysis of major principal stress arch.
可用小主应力拱应力分析计算直接土压力，用大主应力拱应力分析计算间接土压力。
The direct earth pressure should be calculated by analysis of minor principal stress arch while the indirect earth pressure by analysis of major principal stress arch.
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