Fatigue criteria for different materials 1

[GMarsh]

Hi,

Are certain fatigue criteria more relevant for certain type of materials? I heard that Gerber is good for ductile materials, etc. So can we use criterion based on material? Any particular reference on this?

Thank you
Geoff

 

[metengr]

http://www.public.iastate.edu/~e_m.424/Fatigue.pdf

 

[TVP]

https://www.efatigue.com/efatigue.html

 

[bxtsafe]

> The following information are valid for high-cycle fatigue (S-N method):

For steels and metals in general, the best fatigue criteria are classified in this sequence:

1) Walker model
2) Morrow model
3) SWT model (Smith–Watson–Topper model)

For Aluminium and titanium alloys, the best fatigue criteria are classified in this sequence:

1) Walker model
2) SWT model
3) Morrow model

Source:

http://www.ewp.rpi.edu/hartford/~ernesto/F2011/EP/MaterialsforStudents/DeRosa/Dowling2004.pdf