残留应力

用X射线应力测量仪测量了不同切削条件下铝合金工件表面的残留应力。

With the X-ray stressmeasurer , the residual stress of machined surface was measured when aluminum alloy be fine-cutted by cemented carbide on different cutting condition .

结果表明，在疲劳裂纹的起裂阶段，J积分具有良好的守恒性，而在随后的疲劳裂纹扩展过程中，由于裂纹尖端区域残留应力的影响，J积分具有明显的路径依赖性。

It was found that , J integral had a good path independence at the initial stage of the fatigue crack growth . Because of the effect of residual stress of crack tip region , J integral appeared a significant path dependence in the afterward stage of fatigue crack growth .

若使用会有残留应力现象的材料如PC时，残留应力会对量测结果造成影响，这是设计时应该注意的地方。

When we designing light guide plate , we should be careful on the effect of residual stress when using PC.

一种测量钢材残留应力的磁性各向异性方法

A Magnetically Anisotropy Method for Measuring Residual Stress in the Steels

切削条件对已加工表面残留应力的影响

Influence of Cutting Condition on the Residual Stress of Machined Surface

提出低碳钢焊接结构防止碱脆破裂的基本措施是消除焊后残留应力。

The results of the tests show that the basic method of preventing alkali embrittlement cracking is to eliminate postwelding residual stress .

文中重点叙述了低温设备内残留应力的危害，低温设备热处理的方法、工艺和加热温度的确定。

This article discusses the damage of interior residual stress to the low temperature equipment and heat treatment technology for the low temperature equipment .

研究了预塑变对爆轰处理和未爆轰处理样品的强度、表面残留应力、氢脆敏感性及其关系的影响。

Investigation was made of effect of preplastic deformation for unexplosive and explosive treatments on strength , surface residual stress and hydrogen embrittlement of the specimens .

雷射热裂切割法具有加工速度快、切割面平整及热残留应力低等优点，近年来已逐渐取代传统钻石刀切割研磨法成为光电产业液晶玻璃基板加工主流。

The thermal fracture cutting technology for brittle materials has become the crucial technology for LCD glass substrate cutting to meet the low residual thermal stresses requirement .

淬火后，轨头、轨底的残留应力分布合理，呈现压缩应力，对提高疲劳寿命是有利的。

The distribution of residual stress is reasonable after quenching . The presence of compression stresses in the rail head and foot is of benefit to its fatigue strength .

在高速射出成型时，电子连接器局部区域可能会产生残留应力，导致在承载外力作用时可能会发生断裂问题。

It is known that local residual stress will probably occurs under high injection speed in molding electronic parts , which will results in part breaking under external force .

用应力框试验法研究了Si/C的变化对灰铸铁残留应力及抗变形能力的影响，得出随Si/C的提高，铸铁抗变形能力增强，残留应力减小，铸铁尺寸稳定性变好的结论。

The effect of Si / C ratio on residual stress and deformation resistance of gray iron casting has been studied using stress frame test . The results indicate that .

发展了文献[1]中提出的变形模型，研究了短纤维增强金属基复合材料热残留应力的分布及其对拉伸和压缩载荷下应力分布的影响。

Thermal residual stresses and their effects on the stress distributions under the applied tensile and compressive loadings were studied by using the deformation model proposed in paper [ 1 ] .

结果表明，硬质合金刀具薄切削铝合金时，切削速度、进给量、切削深度对已加工表面残留应力的影响具有不同的规律。

The result express that there are different laws of influence on the residual stress of machined surface when aluminum alloy be fine-cutted at different cutting speed , feed and cutting depth .

运用文献[1]中的变形模型和应力计算结果，推导出了存在热残留应力时的拉伸和压缩弹性模量和屈服强度表达式，表达式与试验吻合很好。

By using the deformation model proposed in paper [ 1 ] and the calculated results of the stresses , the expressions of tensile and compressive elastic moduli and yield strengths in the absence of thermal residual stresses were derived , which exhibit good agreement with the experimental results .

铸铁钢锭模残留铸造应力探讨

Inquiry into Casting Residual Stress of Cast-iron Ingot Mould

这两者可借由拉曼频谱来决定晶粒中合金的组合成份以及残留的应力。

Both the alloy composition and residual strain in the grains were determined from the Raman shift .

取向的结果，导致大量的硬段残留取向、应力软化、应力滞后和高变形，以及材料的高模量和高强度。

The orientations of polyurethanes resulted in a large number of the residual orientation , the stress softing and stress hysteresis , the permanent set , the higher modulus and strength of materials .