GJS-600-3 - Wohler's fatigue curve

Of course, i know that curves will be change with surface finishing, temperature itp.. If you can, please post this Wohler Curve which you talking about, i will be grateful. If you don't knoiw how post image, please insert the direct link to file on web.

Thanks,
kaka_90

 

I will try to post the image from my personal pc later.

 

Great!!!!!!!!!!!!!!!! It works

I'm not so dumb as I thought

 

These graphs are for GJS 600 and they are the standard curves:

- Wohler standard specimen Ø7.5 mm
- 50% safe accuracy
- polished surfaces
- Temperature 20 °C

 

In the graph the terms means:

- FLESSIONE = BENDING
- TORSIONE = TORSION (this was easy to understand )
- SFORZO NORMALE = AXIAL LOAD

Please let me know if I was clear

 

I've found a site that might be of some help to you. It is the Ductile Iron Societies web page for engineers. Here is the link http://ductile.org/didata/Section3/3part1.htm#top

 

Thanks everybody for help. PierArg your fatigue curve is ok, but i must recalculate my problem couple of times then i have a guarante that it is good. T-Harv, i saw that webpage a month ago, but it is not graphs that the interested me. I found a book called "Analitycal Strenght Assessment" - it is FKM (Deutchland) publishing house - there is a method to make a Wohler curve for any materials. I only must study this prolem. Anyway, thanks everybody for your invaluable help.

Pozdrawiam
KKA

 

Hello Kaka,

as I wrote some posts ago, Shigley and Juvinall in their books discuss about the Wohler curve construction.
You can easily refer to one of them.