焊接残余应力是重要的影响因素之一。
结果表明，最大焊接残余应力出现在热影响区。
The results show that the maximum residual stress appears in heat affected zone (HAZ).
因此，焊接残余应力一直是人们关注的热点问题。
Therefore, the welding residual stresses are still very important problems.
每条焊缝采用分段退焊法，减小焊接残余应力和变形。
Segmental back welding is adopted for each welding seam to minimize the residual stress and deformation of welding.
设计了一套全息干涉的试验光路，以计算焊接残余应力。
A set of experimental optical lines is designed to calculate welding residual stress.
通过测试工程机械结构件焊接残余应力，分析其分布特点；
The paper introduces the test of welding residual stress in weldment of constructional machinery and its distribution law.
系统研究了不同激振频率对焊接残余应力降低程度的影响。
The design variables include the excitation frequency and the stiffness of vibration isolation system.
并对采用上述两种方法消除焊接残余应力的结果进行了比较。
The results from the two methods of removing welded residual stress are compared.
采用小孔法测定了不同热处理方法消除焊接残余应力的效果。
Effects of relieving residual welding stress with different heat treatment methods were studied by the method of drilling little holes.
结果表明，气侧焊缝区与近焊缝区存在很高的焊接残余应力。
The result show that there was very high welding residual stress on the welding joints and their adjacent area in the gas side.
对存在原始焊接残余应力的管接头在不同的热处理条件下进行分析。
The pipe with original welding residual stresses is analyzed under different conditions of PWHT.
在焊接试件中有显著的裂纹闭合现象，其原因是焊接残余应力的作用。
There is significant closure in welded specimen due to the effect of welding residual stress.
给出了焊接残余应力与局部焊后热处理应力的试验结果与模拟结果的对比。
Experiment results of welding residual stress and the stress after local post weld heat treatment are compared with numerical simulation.
以Q345钢结构箱型柱为对象，研究了超声冲击工艺对焊接残余应力的影响。
The effects of ultrasonic impact treatment (UIT) on the residual stresses of welded rectangular steel (Q345) pillar were investigated.
介绍不同焊接工艺对厢形梁焊接残余应力的影响及校直前后其残余应力的变化。
The effect of different welding techniques, and alignment after welding, on the residual stress of rectangular girder weldment was studied.
试验结果表明，振动埋弧焊工艺能有效地降低焊接残余应力和变形，并细化晶粒。
The results of test showed that vibratory submerged arc welding can reduce residual stress and distortion notably and make the grains fine.
本文介绍了焊接残余应力对金属结构的静强度、脆性断裂以及应力腐蚀开裂的影响。
The paper discusses over the influence exerted by welding residual stress on the static strength, brittle fracture and stress-corrosion cracking of metal structure.
研究方法和结果对合理的选择焊接方法、控制和预测焊接残余应力和变形提供参考。
It provides an important reference for choosing welding method and protecting and controlling the welding residual stress and deformation.
对于材料承受动力载荷性能的影响而言，焊接残余应力对材料疲劳寿命的影响是重要的。
As for material's performance under the effect of dynamic loading, it plays an important role for welding residual stress in the analysis of material fatigue strength.
对所测试件选取适当的模型，应用弹性力学理论，推导出微小位移与焊接残余应力的关系式。
On the basis of model selection from the pieces tested and according to elastic mechanics, the relation between minute displacement and welding residual stress is deduced.
但是在许多情况下，钻孔法是用于测量焊接残余应力，而该应力峰值往往接近材料的屈服极限。
But this method is used to determine welding residual stresses in many cases where the stress peaks are often near the material's yield strength.
因此可以预见，对于应用局部加载降低结构体焊接残余应力，柱壳结构要比平板结构效果更好。
It can be predicted that the cylindrical shell structure is better than the plane structure in reducing welding residual stress through local loading.
研究发现X70钢的焊接残余应力相当高，这对管线在腐蚀环境运行是相当危险的，需要消除。
The welding residual stress is very high in X70 steel, it is dangerous for the pipeline performance under corrosion condition, and necessary to be eliminated.
本文利用ADINA非线性分析有限元程序，对低碳钢管道环焊缝接头焊接残余应力进行计算。
In this paper, the residual welding stresses in a low carbon steel girth butt welded pipe are calculated with a nonlinear finite element code ADINA.
本文给出了各自的焊接残余应力场和平叉结构的焊接变形的模拟结果，并对其进行了定量分析。
In this paper, each welding residual stress fields and the welding deformation simulation result of the rear fork structure were given and quantitatively analyzed.
结果表明，锚拉板区域各条主要焊缝都不同程度地存在着焊接残余应力，局部地方接近屈服强度。
The results of the test show that there are different degrees of welding residual stress in main welding lines and some are close to yield strength.
本文基于小孔释放法测量残余应力的方法，通过实验研究了交变载荷对焊接残余应力场产生的影响。
Based on the blind-hole method, series of experiments are carried out to analyze the effect of alternate loading to the redistribution of residual stress.
通常，影响焊接接头性能的力学因素有焊接缺陷、接头形状的不连续性、焊接残余应力以及焊接变形。
The mechanical factors for the property of welding joint are welding defects, discontinuity of joint shape, welding residual stress and welding distortion.
铝合金结构在加工过程中，尤其是焊接加工过程中会出现许多的问题，特别是焊接残余应力和残余形变。
In the course of processing, Aluminum alloy structure particularly welding processes will be many issues, particularly residual stress and deformation.
铝合金结构在加工过程中，尤其是焊接加工过程中会出现许多的问题，特别是焊接残余应力和残余形变。
In the course of processing, Aluminum alloy structure particularly welding processes will be many issues, particularly residual stress and deformation.
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