负面的迹象表明，这是压应力。
The negative sign indicates that this is compressive stress.
残余压应力作用在塑性变形层内。
激光淬火硬化层应力状态为压应力。
拉应力可以诱发压应力的出现。
压应力主要来源于晶格失配和热失配。
This compressive stress is derived from the lattice and thermal mismatch.
发现所有薄膜的表面应力均为压应力。
It was found that the surface stress for all films are compressive.
侧向压应力则由水压力和货物压力引起。
玻璃不能在接口处膨胀，因此表面存在了压应力。
Glass cannot bulge at the seams, so the surface becomes compressed.
但其最大残余压应力值及应力影响深度有所降低。
But its maximum compressive residual stress and influencing depth reduces.
此外，也给出了常见的三种软化压应力-应变关系方程。
In addition, three familiar sets of softened compression stress-strain relationship of concrete are showed.
但固结应力比与有效围压应力对阻尼比之影响则较不明显。
The influence of consolidation stress ratio on damping ratio is not distinct.
喷丸后扭转疲劳极限提高的主要原因是残余压应力的作用。
Compressive residual stress are the main factor in the increase of torsion fatigue limit.
对裙座所受轴向压应力进行校核，可知裙座满足稳定性条件。
Checking the axial compressive stress of the skirt, deduces that it is stable.
洞室开挖会使围岩周边产生应力集中，产生拉应力与压应力。
Stress concentration caused by chamber's excavation engenders tensile and compressive stress to surrounding rock.
结果表明，激光相变硬化层中的残余压应力是普遍存在的现象。
The experimental results show that the residual compressive stresses existed in the laser hardened case are universal phenomena.
向心关节轴承在承受载荷时，承载区各点的压应力是不等值的。
When absorbing load, various loaded points of plain radial bearing receive different compressive stresses.
疲劳裂纹在残余压应力场中的扩展可借助于裂纹闭合力来描述。
Fatigue crack propagation in a compressive residual stress field can be characterized with the closure effect.
讨论了远场压应力在裂纹周边附近产生的局部拉应力场的应力情况。
Discussed the stress condition of periphery crack's local tension stress field created by compressing stress in far field.
试验表明，化学热处理后残余压应力的深度往往与渗层深度相一致。
Test shows that the depth of residual compressive after chemical heat treatment is correspondent with that of diffusion layer.
同时，共渗在空心滚子内表面造成的压应力对改善弯曲疲劳性能有利。
Meantime, the compressive stress in inner surface of hollow roller by nitrocarburizing is available for improvement of bend fatigue property.
结果表明，最大压应力轴向分布呈S形，原辊形会引起接触应力集中。
The calculated results indicate that the axial distributions of the maximum contact pressure have an "s" shape.
为此，SKF研制了材料表面处理工艺，可增强表面硬度，并产生压应力。
For this, SKF developed material finishing technology, can enhance exterior hardness, arise press stress.
这种薄膜具有很小的压应力，很低的针孔密度，良好的台阶覆盖性等优点。
The films have advantages of slightly compressive stress, very low pin-hole density and superior step coverage.
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。
Reasonable program for field pumping and rejecting development is put forward according to magnitudes and orientations of the maximum and minimum principal stresses.
通过分析表明，压应力对裂纹尖端塑性区和疲劳裂纹的扩展有显著的影响。
The analysis shows that the compressive loading has a significant contribution towards the crack tip plasticity and the fatigue crack growth.
随着远离起始端距离的增加拉应力值逐渐减小转变为压应力，最后趋向零。
With increase of distance, tensile stress is translated into compressive stress arid tends to zero.
文中还给出了PVDF用在铝试件及岩石试件中压应力波测量的试验结果。
The compressive pulses measured with PVDF gauges placed in aluminum and rock bar specimens are given too.
并对残余压应力和残余奥氏体可以提高接触疲劳寿命的原因提出了新的解释。
A new explanation of reason why the rolling contact fatigue life can be prolonged by residual compressive stress and retained austenite was advanced.
虽然玻璃可以承受很大的压应力，但是张应力可以使这些小裂痕逐键逐键的长大。
While glass is very strong in compression, tensile stresses will make these tiny fissures start to grow, bond by bond.
并计算施工过程中墩顶必须承受的最大水平拉力以及钢纵梁的最大轴向压应力。
The maximum horizontal force that the pier must resist and the longitudinal stress of the stringer are studied.
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