A simplified welding simulation approach used to design a fatigue test specimen containing residual stresses
A simplified welding simulation approach used to design a fatigue test specimen containing residual stresses
复制标题
用于设计包含残余应力的疲劳试验样本的简化焊接模拟方法
DOI：
10.1080/09377255.2018.1518692
复制
发表时间：
2019
影响因子：
2.2
通讯作者：
S. Ehlers
中科院分区：
文献类型：
--
作者：
N. Friedrich;S. Ehlers
虽然已知残余应力可能影响焊接结构的疲劳强度，但它们通常不明确地包括在疲劳评估中。由于小尺寸试样往往只显示出很小的拉伸残余应力，因此，焊接残余应力对疲劳影响的实验研究变得复杂。在实践中，残余应力通常是未知的，难以确定。焊接模拟方法通常需要实验校准，使其不适合残余应力预测。然而，其结果的可靠性有限。为此，提出了一种无需实验标定的均匀温度焊接模拟方法。改变不同的输入参数，以确定其对计算的残余应力的影响。然后，该方法被用来设计一个小规模的疲劳试验样本显示在焊缝处的拉伸残余应力。根据模拟结果制作试样，并将残余应力测量值与计算值进行比较。
Although it is known that residual stresses may influence the fatigue strength of welded structures, they are usually not included explicitly in fatigue assessments. Experimental investigations on the influence welding residual stresses have on fatigue are complicated by the fact that small-scale specimens often show only little tensile residual stresses. In practice, residual stresses are usually not known and difficult to determine. Welding simulation approaches usually demand for experimental calibration making them unsuitable for residual stress predictions. The reliability of their results is however limited. Therefore, a welding simulation approach applying uniform temperatures without experimental calibration was proposed. Different input parameters were varied to determine their influence on the calculated residual stresses. The approach was then used to design a small-scale fatigue test specimen showing tensile residual stress at the weld. Specimens were produced based on the simulation results and residual stress measurements were compared to the calculated values.
登录
查看更多内容
DOI：
10.15480/882.1105
发表时间：
2013
期刊：
--
影响因子：
--
作者：
Sonja Zacke
通讯作者：
Sonja Zacke
影响因子：
2.1
作者：
J. Klassen;N. Friedrich;W. Fricke;T. Nitschke–Pagel;K. Dilger
通讯作者：
J. Klassen;N. Friedrich;W. Fricke;T. Nitschke–Pagel;K. Dilger
DOI：
10.1177/0309324712463866
发表时间：
2012-11-01
影响因子：
1.6
作者：
Bhatti, Ayjwat A.;Barsoum, Zuheir
通讯作者：
Barsoum, Zuheir
焊接部件疲劳设计中残余应力定量考虑的工程模型
影响因子：
2.1
作者：
J. Hensel;T. Nitschke–Pagel;K. Dilger
通讯作者：
K. Dilger
DOI：
10.1016/j.ijpvp.2004.08.003
发表时间：
2005
影响因子：
3
作者：
C. Elcoate;R. Dennis;P. Bouchard;Michael C. Smith
通讯作者：
Michael C. Smith