Fracture Mechanics - Stress Intensity Factors
Fracture Mechanics - Stress Intensity Factors
(OP)
Hello All,
I was wondering if anyone had a good source for where I could find stress intensity factors for a tube (similar to a pipe) loaded in bending.
I have a tube which failed for me and I noticed that it was initiated by fatigue failure. Fatigue failure produced a flaw within the tube and it eventually failed from overload. I'm curious what the final force was that caused it to finally rupture.
I'm thinking I could use Fracture Mechanics for this.. K = Y(Sigma)root(PIa) or something similar.. but I need to know that Y term..
Any ideas, and any comments regarding my methodology would be much appreciated. Thanks!
I was wondering if anyone had a good source for where I could find stress intensity factors for a tube (similar to a pipe) loaded in bending.
I have a tube which failed for me and I noticed that it was initiated by fatigue failure. Fatigue failure produced a flaw within the tube and it eventually failed from overload. I'm curious what the final force was that caused it to finally rupture.
I'm thinking I could use Fracture Mechanics for this.. K = Y(Sigma)root(PIa) or something similar.. but I need to know that Y term..
Any ideas, and any comments regarding my methodology would be much appreciated. Thanks!





RE: Fracture Mechanics - Stress Intensity Factors
to determine the load causing failure, you'll also need the material toughness (Kc, possibly KIc if the tube is very thick). i suspect too that you've got a complex loading (pressure in the tube, bending, ...) and possibly temperature effects ... this isn't going to be a simple exercise ... good luck !
RE: Fracture Mechanics - Stress Intensity Factors
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: Fracture Mechanics - Stress Intensity Factors
RE: Fracture Mechanics - Stress Intensity Factors
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RE: Fracture Mechanics - Stress Intensity Factors
I will definitely look through all of the resources you've provided!
Thanks!