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1)  major pressure stress axis
主压应力轴
1.
The variation of the major pressure stress axis of medium-small earthquakes in 2 years before 11 earthquakes with Ms≥5.
0地震前2年至震后1年震源区(△≤150km)附近中小地震主压应力轴相对背景场的变化研究结果表明,Ms≥5。
2)  Seismie P-axes
地震主压应力轴
3)  principal compressive stress axis and principal compressive strain axis
主压应力轴与主压应变轴
4)  principal stress
主轴应力
1.
In the paper, the solution to Saint-Venant problem through assumption ofprincipal stress curves by means of the equilibrium equations which were deducedin paper [1] is obtained.
本文利用文[1]中讨论的主轴应力坐标上的平衡微分方程,通过假设平面杆在轴力作用下的主轴应力曲线,获得了该问题的圣维南问题的解,指出剪应力的衰减速度是a3/y3,轴力趋于常数的速度是a2/y2。
2.
In this paper, the equilibrium equations on orthogonal curve coordinates made of curves of principal stresses are disscused and their properties in process of solution are presented through a simple example.
本文中讨论了弹性力学平面问题中由主轴应力曲线构成的正交曲线坐标系上的平衡方程,以及解的特性。
5)  principal axis of stress
应力主轴
6)  principal compressive stress
主压应力
1.
In Guangxi and vicinity,the principal compressive stress of the current tectonic stress field is in NW direction in Northwest and North Guangxi,and in EW in East Guangxi and littoral,a.
认为:广西及其邻区现今构造应力场的主压应力方向在桂西北和桂北为NW向,在桂东和沿海一带为EW向,这两种应力在桂中附近汇合形成过渡构造;受海南地幔热柱的影响,北部湾和雷琼地区向南拉张,形成SN向主张应力。
2.
The results show that predominant polarization directions of fast shear-waves at most stations are in strike ENE(nearly E-to-W),consistent to the direction of regional principal compressive stress,and also consistent to the direction of the regional tectonic stress field in the north part of North China.
发现大部分台站的快剪切波优势偏振方向为NEE(近EW)向,与原地主压应力方向一致,也与华北北部的区域构造应力场方向一致。
补充资料:单轴应力
分子式:
CAS号:

性质: 仅沿某一个轴向作用于材料上而且只有一个分量的应力。即σ1≠0,σ23=0。这种情况通常在简单拉伸无裂纹的均质材料时出现。如所加应力是张应力,则在受力方向上材料要伸长,垂直于应力方向上材料要减小尺寸。

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