The circumferential normal stress is tensile.
周向正应力是张性的。
A normal stress is positive if it is tensile.
如果是拉应力，则该应力为正。
Objective: To realize normal stress distribution of lumbar vertebral body.
目的：了解正常人腰椎椎体的应力分布特点。
The larger the density, the lower the effective mean normal stress, the more dilative response is.
土的密度越大，有效平均正应力越低，土的剪胀性就越大。
But many tests show the shear strength of the rockfill material is a nonlinear function of the normal stress.
试验表明堆石材料的抗剪强度更符合非线性表达式。
The paper has also made analysis of the characteristics of the rock mass shear strength under high normal stress.
分析了高正应力条件下岩体抗剪强度的特征。
Whether the normal stress and static Coulomb failure stress have the effect on triggering aftershocks is analyzed.
分析了正应力变化和静态库仑破裂应力变化是否对余震有触发作用。
When normal stress variation is taken into account, time scale of such processes can be extended by about 2 times.
⑤正应力的变化对上述时间尺度有延长作用，使之大致增加到原数值的2倍。
The shear displacement increases with increasing normal stress and cement content at the same height in shear failure state.
同样的法向应力及高度处，切向位移随水泥含量的提高而增大。
The calculate data show that the maximum normal stress given by the nonlinear method is 15-20% less than that by linear one.
计算结果表明，运用非线性理论求得的最大应力比常规设计要小15 ~ 20%。
The optimum test design is obtained to minimize variance of least square estimation of the mean life at a normal stress level.
这里的最优准则是指正常应力水平下产品对数平均寿命估计的方差的极小化。
The formulas for calculation of normal stress under complicated loading in composite curved beams with general shape are derived.
给出了一般截面形状复合曲梁在复杂受力情况下的正应力计算公式。
The cleavage fracture of the notched specimens with various sizes and widths is mainly controlled by the criterion of normal stress.
不同尺寸和宽度的缺口试样的解理断裂主要由正应力判据控制。
Therefore, the bending moment may cause normal stress at the axis of gravity, and the concept of "equivalent axial force" is induced.
因此弯矩在形心处要引起正应力，从而引出所谓“等效轴力”的概念。
How to control the normal stress between sealing faces is a critical factor while using metal face seals for rolling cutter rock bits.
在牙轮钻头中成功应用单金属浮动金属密封结构的关键在于控制密封端面之间的接触压力。
The test results show that the peak and residual shear stresses increase linearly with the increase of different normal stress histories.
结果表明，岩石节理峰值和残余剪切应力随垂直应力的增加呈线性增长趋势，而剪胀特性已变得不明显。
It is shown that the shear strength of joint is concerned with normal stress and weighted average of mean profile angles of joint surface.
说明节理的抗剪强度与法向应力和节理表面形貌特征参数有关。
The bending normal stress amplitudes of the nodes in the critical section near crankshaft fillet were obtained by modal expanded computation.
最后通过模态扩展计算得到圆角危险截面圆弧上各点在疲劳试验过程中的弯曲正应力幅值。
The bubble shape is changed gently because of the difference between radius of geometric curvature and radius required to equalize normal stress.
由于几何曲率半径和平衡正压力所要求的半径有差别，气泡形状要缓慢地变化。
The volcanic eruptions are correlated with geoid, the positive geoid anomaly can build up high normal stress, which is in favor of huge eruptions.
火山喷发活动还与当地的重力势有关，重力势正异常可能与高的正压力有关，有利于产生特大喷发。
Parameters of the storage degradation model are estimated through the regression theory, and the storage life of missile EMR under normal stress is predicted.
通过回归理论估计了贮存退化模型的参数，并用所建模型对弹用EMR正常温度应力下的贮存寿命进行了预测。
When crack starts to grow, the normal stress and average atom energy at the crack tip in atomistic simulation agree well with the results of continuum analysis.
分子动力学模拟和宏微观分析均得到裂纹起始扩展的临界时刻、裂尖应力场和原子平均能量。
This paper introduces the principle of the Computer Aided Testing system of normal stress in crossbeam wind. It gives the detailed structure of handling program.
本文介绍了横梁弯曲正应力计算机辅助测试系统的工作原理，给出了处理程序的详细结构。
It has been discovered by exploration that besides the normal stress-release cracks there exist a lot of mud-intercalated fracture zones in the right bank slope.
勘探发现，某水电站右坝肩边坡，除正常卸荷裂隙外，发育有大量的夹泥型破裂带。
However, at higher angle of tooth-shaped asperities and under higher normal stress, the failure model II is found, which is in first tension but final shear failure.
在较高的法向应力下，含起伏角较高齿形节理面的非贯通节理岩体可能出现破坏模式II（先张拉后剪切破坏模式）。
The affected area of unstable event is different for events occurred on different parts of the sample and it is wider for the event along the fault with high normal stress.
发生在不同部位的失稳事件影响范围不同，在正应力较大的断层上失稳事件影响范围大。
The effect of the first normal stress difference increases the load capacity obviously under the condition of the dynamic load, and it also affects the locus of shaft center.
在动载荷条件下，第一正应力差效应明显增强了油膜压力和承载力，并对轴心轨迹产生影响。
This method can be used to check the maximum bonding shear stress and the maximum peeling normal stress at the end of the GFRP sheet, and to prevent the local bonding failure.
本文公式可用于计算片材端部的最大锚固剪应力和最大剥离正应力，防止局部粘结破坏。
The matrix calculating formulae are proposed for solving the normal stress and transverse shearing stress as well as the maximum dynamic stress, in each link of a planar linkage.
进而给出了求解机构杆件截面上任一点法向应力和横向剪应力以及各构件最大动应力的矩阵计算式。
Prosthesis force includes normal stress and shear stress. The normal stress is beneficial to prosthesis fixation and force transfer, while shear stress may cause prosthesis loosening.
假体受力可以分解为正应力和剪切应力两部分，正应力有益于假体的固定和力的传递，而剪切力会导致假体松动。
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