Hi everyone
I recently bought a steel bar that is 2”x2”x12”. The supplier told me that it was cut from a forged plate. I notice that the plate that my bar was cut from was forged from a circular bar. What I wanted to know is the orientation of my bar in reference to the plate. From the...
Hi all, hope I am posting in the right place.
I will be conducting some load control fatigue test on my compact tension sample. I have done these test before and successfully monitored the crack with a CMOD clip gauge. But this time I am running at low load and a paper that I found said that...
Hi, I am trying to do some fatigue calculations on a component, but find that there are not enough material data (S-N data). So I am trying to generate my own data (mainly with higher stress ratios) to use in conjunction with those available. However, the data available are at a different heat...
Hi, I have been talking to someone about uniaxial (tension-tension) loading fatigue testing. They told me that hollow cylinder specimen is a lot harder to work with than solid cylinder specimen in terms of fatigue. I just want to know the reason for that. Is it because the cross section of the...
Hi, I have been talking to someone about uniaxial (tension-tension) loading fatigue testing. They told me that hollow cylinder specimen is a lot harder to work with than solid cylinder specimen in terms of fatigue. I just want to know the reason for that. Is it because the cross section of the...
Hi, I am trying to look for fatigue crack growth data (da/dN-?K data) for the material PH 13-8 Mo stainless steel with H1050 condition. I have looked through MIL-HDBK-5J, but they don’t have the crack growth data. Anybody able to provide or help me to locate the data?
I am trying to look for some black hawk fatigue reports produced by Sikorsky. They have report number such as Ser-70116, anyone have any idea where I can get a free pdf version of them? I am in particular looking for a part that describe the fatigue testing procedure on the main rotor tie rod.
I am new to material fatigue and I have just started doing some work on helicopter fatigue. I am getting confuse about load spectrum and usage spectrum. Are they the same thing? It will be good if someone can provide me a link to an example of each.
I am new to material fatigue and I have just started doing some work on helicopter fatigue. I am getting confuse about load spectrum and usage spectrum. Are they the same thing? It will be good if someone can provide me a link to an example of each.
