Urgent: SN-curve for AISI 4140 Steel needed ASAP
Urgent: SN-curve for AISI 4140 Steel needed ASAP
(OP)
Hello all,
I have an urgent need to find S-N data on AISI 4140 steel. The data I have does not extend to low enough cycles.
Thanks,
Mike
I have an urgent need to find S-N data on AISI 4140 steel. The data I have does not extend to low enough cycles.
Thanks,
Mike





RE: Urgent: SN-curve for AISI 4140 Steel needed ASAP
RE: Urgent: SN-curve for AISI 4140 Steel needed ASAP
RE: Urgent: SN-curve for AISI 4140 Steel needed ASAP
I was going to recommend the Steel Bar Fatigue database earlier because I have similar access. However, you did not mention the heat treatment condition of the 4140 earlier because using the stress life (S/N) approach, strength has a direct effect on the shape and magnitude of the S/N curve.
So, what you need is stress-life fatigue data for normalized 4140 alloy steel. Let me see what I can find in my reference material.
RE: Urgent: SN-curve for AISI 4140 Steel needed ASAP
You might want to try this site, it is called eFatigue. Dr. Socie from the University of Illinois developed the site. I used to have free access. Dr. Socie has developed a large fatigue properties database, and could be what you need for your project.
https:
RE: Urgent: SN-curve for AISI 4140 Steel needed ASAP
Robert Basan, Domagoj Rubeša, Marina Franulović, Božidar Križan: A novel approach to the estimation of strain life fatugue paramaters Procedia Engineering 2 (2010) (= P. LUKÁŠ (Hrsg.): Fatigue 2010: Proc. of the 10th Int. Fatigue Congress held in Prague, June 6-11, 2010): 417-426