Fatigue test
Fatigue test
(OP)
I am new to the world of fatigue test. I am looking to carry out a test at load ratio of 0.1 My question is whether a constant stress is to be maintained all thought the test of a constant load (sigma max - sigma min) is to be controlled. What constitutes a fatigue cycle is it constant stress or load? if it is load then how is it different from creep.
appreciate your feedback
Thanks
appreciate your feedback
Thanks





RE: Fatigue test
What kind of fatigue? Are you looking at a fully reversed or cyclic in one direction?
Fatigue is a rather empirical world that has no perfect analytical estimations.
Fe
RE: Fatigue test
A purely stress vs. cycle curve seems difficult to determine and wouldn't it almost certainly be equivalent to a load vs. cycle curve? (Depends on application, of course)
RE: Fatigue test
fatigue failure is a function of cyclic stress applications. it can be tested under fully reversed stress cycles or a combination of constant load with a time varying component.
your load ratio may be a description of the ratio of constant to cyclical load
RE: Fatigue test