Stress concentration
Stress concentration
(OP)
Hi,
I have a case here where i would like to know what the stress concentration factor conservatively (see below). I have heard that if you set 3 then you are safe?

I have a case here where i would like to know what the stress concentration factor conservatively (see below). I have heard that if you set 3 then you are safe?

RE: Stress concentration
MJCronin
Sr. Process Engineer
RE: Stress concentration
If this is fatigue it would be worse than that.
But for low cycle and static loads 3 is usually in the right range.
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P.E. Metallurgy, consulting work welcomed
RE: Stress concentration
RE: Stress concentration
we're assuming zero voids, even little tiny ones ?
"surely" someone has done some research on the fatigue of welds ??
another day in paradise, or is paradise one day closer ?
RE: Stress concentration
You have to make a bunch of assumptions; ductile materials, properties largely unchanged by welding, weld filler modestly stronger than base metal, loads a small fraction of ultimate, no high cycle fatigue, and so on.
Of course a lot of this goes away if they just use a full pen weld
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P.E. Metallurgy, consulting work welcomed
RE: Stress concentration
RE: Stress concentration
Lets say 14k cycles what would a conservative factor of stress concentration be?
RE: Stress concentration