Therefore, the welding residual stresses are still very important problems.
因此,焊接残余应力一直是人们关注的热点问题。
The pipe with original welding residual stresses is analyzed under different conditions of PWHT.
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。
This paper introduced an experimental research on welding residual stresses of thin wall cylinder.
介绍了薄壁筒焊缝残余应力的实验研究。
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.
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。
Comparing the results of the welding residual stresses at outer surface of beryllium ring by FEM to that from X ray stress measurement, the stress trend is identical.
对铍环外表面钎缝附近焊接残余应力进行X射线应力测试,并与有限元分析结果对比,二者应力变化趋势基本一致。
ANAND viscoplastic constitutive equation was introduced into the FE model for calculation of the reduction of welding residual stresses during the post weld heat treatment.
将ANAND粘塑性本构关系引入到焊后热处理消除残余应力的有限元计算中。
The measurement of residual stress of electron beam welding need to expend great cost, so it is important to numerically simulate the value and distribution of welding residual stresses.
电子束焊接残余应力的实测需要花费大量成本,因此采用数值模拟其焊接残余应力的大小和分布具有重要意义。
The welding residual stress of the runner is the main reason which leading to the fault of the runner blades, so the study on the welding residual stresses of the runner blade is necessary.
其中转轮的焊接残余应力是导致转轮叶片出现断裂的主要原因,所以对转轮叶片上的焊接残余应力的研究是非常有必要的。
So for thick-walled double channels with welding composite section, the combined effects of the cold-formed and welding residual stresses shall be considered to assure the stability bearing capacity.
因此,对厚壁双冷弯槽钢焊接组合截面构件而言,确定其稳定承载力时应考虑焊接残余应力和冷弯残余应力的共同影响。
It can be concluded that the local high temperature can be reduced effectively using the technique of discontinuous welding and smaller residual stresses are obtained.
结果表明,采用间断焊可以有效降低焊接时的局部高温,而且其残余应力也略低于连续焊。
Aim at 7075 aluminium alloy vacuum electronic beam welding, using nonlinear finite element, the numerical simulation of the residual stresses distribution in welding joint was made.
针对7075铝合金中厚板真空电子束焊接过程,采用非线性有限元法,对焊接接头的残余应力分布进行了数值模拟。
The influences of the welding residual deflections and stresses on the plating vibration were discussed.
探讨了焊接残余变形、残余应力对船体板振动频率的影响。
The large welding current caused the formation of quenched martensite and the high residual stresses in the welding zone, resulting in the increase of zinc sensitivity of hydrogen attack.
结果表明:由于焊接电流过大,使焊缝产生淬火马氏体组织及较大的焊接残余应力,导致镀锌氢脆敏感性增加,造成吸油盘发生氢脆开裂。
To evaluate fracture instability, the total sum of stresses due to residual welding or rolling stresses, dead load, and live loads must be considered.
计算断裂失稳性时,必须考虑焊接或轧制残余应力,恒载应力和活载应力之总和。
Wind cooling accelerated elimination of heat dissipation, and controlled temperature which made welding transverse contraction deformation and the residual stresses decrease.
气冷的方法,可以使试样散热更快,达到控制温度的目的,同时也可以减小焊接残余应力和焊接横向收缩变形。
The process of vibratory stress relief(VSR) is discussed to reduce the residual stresses after welding of stainless steel plate.
为了消除超大不锈钢焊接底板的残余应力,研究了采用振动时效(V SR)的方法消除焊接残余应力。
Open flat plate welding residual stress is greater than the original residual stresses.
开平板的焊接剩余应力大于原平板的焊接剩余应力。
A unified simple model is proposed in this paper for the computation of 2-d axisymmetrical residual stresses of welding.
本文提出了一个统一的二维轴对称焊接残余应力场的简化计算模型。
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。
Not only significant reduction of the surface welding tensile residual stresses but also even distribution of stresses through the thickness are achieved due to the explosion treatment.
结果表明爆炸处理不仅显著消除试板表面的拉伸残余应力,而且能使残余应力沿厚度方向分布均匀且显著降低。
The paper prompts a new process of making surface compressive residual stresses by the rule of Anti-Welding-Heating Treatment.
本文提出了采用逆焊接加热处理原理制造表面压应力的新方法。
The paper prompts a new process of making surface compressive residual stresses by the rule of Anti-Welding-Heating Treatment.
本文提出了采用逆焊接加热处理原理制造表面压应力的新方法。
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