Mar 29, 2021 · Hi, I am started to work in the area of aircraft fatigue life estimation and please help me with the following: I have few questions regarding fatigue life estimation of metallic …

Feb 27, 2017 · I think I also need to apply a fatigue stress concentration factor to this von Mises stress. Shigley and other references report fatigue thread stress concentration factors of Kf=2 …

Jul 22, 2011 · Random Vibration is all based on Statistics. Calculating the vibration fatigue life is always a combination of stress level and Nof Cycles at that level. One sigma is the rms level …

Jun 4, 2004 · EDM is one of the worst ways to prepare thin reed valves and other high-strength high-fatigue parts. This is a direct result of the HAZ that is present around the "cut". Also the …

Jul 30, 2018 · This method is a part of the strain-life approach in ANSYS fatigue tool. You can find more information here on slide 16 here or here. Keep in mind, that strain-life is based on …

Jul 16, 2003 · Fatigue analysis and cumulative damage are included in the B31 Code rules. The f factor that reduces the allowable stress at higher numbers of cycles is based on fatigue testing …

Jul 19, 2003 · As standard practise, we specify the cad-plate of all steel parts we design to QQ-P-416F. However, it has come to our attention that this may dramatically reduce the fatigue life. …

Nov 26, 2009 · I don't see how press fit is going to help improve fatigue life due to bending stress. I think a properly designed single shaft with hub should be better. You can improve the fatigue …

Mar 13, 2008 · Certainly we are going to do extensive life testing of this spring as we will be using over 30,000 a year. I guess what I need to do is utilize the strongest material (music wire) that …

May 8, 2002 · Then you can't get the right answer, in the general case. You could look at the fatigue life from each of your frequency components individually, if one is dominant then you …