Thank you Torsion Stress. That is a very good idea, especially with the thin sheet and high temps required for welding nickel.
Here is a cross section of the weld
http://postimage.org/image/2afkz24h0/
I believe i may have found a solution to my problem of fatigue analysis. Norton's Machine...
I agree with you EdStainless. The weld placement is terrible and unfortunatly was locked in by manufacturing long before i got ahold of this. I only wish i were able to change it. The only positive thing about the configuration is that the max stress is relatively low in the part. At the weld...
You are absolutely correct dhengr. I did not do as good a job as i should have done in describing the problem. I am immensly grateful to TorsionalStress for his input. Thank you both.
I guess I was incorrectly thinking that there were established fatigue s-n curves for inconel just as there...
This is great reference info Torsion stress. It gives me a very good idea of what the weld is capable of. Unfortunatly I do not think it would be accepted as certifyable data. It states at the beginning of the document:
"The properties given in this bulletin, results of extensive
testing, are...
Hi Edstainless. thank you for your reply. I am wondering why you say the stress will be lower in the welded area... The weld is in bending, and is at the area of highest moment. Lingaiah's Machine Design Handbook recommends 6M/lh^2 (l=weld length, h=weld width) for the stress in this type of...
I thank you again for the information TorsionalStress. The pdf that you provided has s-N information for simple inconel 625 plate/sheet. I was looking for something that addressed the fatigue life of the actual weld. My understanding is that a weld is essentially a casting with an inherent...
Thank you very much for the link TorsionalStress. Even though i have a differenct AMS spec filler material, i guess the properties listed would be a good approximation of the static strength of the weld. Do you have any ideas about the fatigue portion of the problem (lack of s-N curve)?
Long time lurker, first time poster here. Hoping someone can shed some light on my problem...
I have (2) thin 0.063" thick inconel 625 sheet materials welded together using AMS5837 filler material with a complete penetration corner joint. The weld will be thermally loaded as well as put into low...
