Fatigue analysis Course

[Ehiman1]

Hello,
Does someone know a good online course or a good book to understand better the fatigue analysis in pressure equipments?
For example fatigue analysis due to cyclic loads on nozzles by ASME code.

Thank you

 

[blacksmith37]

I suggest you look for failure analysis, I expect ASM has books and short courses. In about 3o years of failure analysis ,mostly ASME or API equipment , I do not recall ever seeing fatigue failure of a vessel or nozzle. Hydrogen attack and brittle fracture caused the most memorable failures.

 

[Dhurjati Sen]

Mechanical Metallurgy by GEORGE E. DIETER

The book was a Bible in our times.

DHURJATI SEN

 

[TGS4]

We have training on Design By Analysis that includes fatigue analysis for pressure vessels to the ASME Code. The training is virtual, so it doesn't matter where in the world you are located.

 

[davefitz]

A good, short summary can be found in the EU's EN 12952-3 annex B, and I recall there was a very good rationale for its adoption published online circa 2000.

The nozzle's weld detail will play a major role in the fatigue response, so in critical applications the higher cost , full penetration weld using nozzle reinforcement, perhaps attached using an ID orbital welder , might be the gold standard. If the lower cost alternatives are being compared using design by analysis techniques ( 3D elastic plastic finite element) , one sometimes needs to consider the "metallurgical notch effect" caused by the discrete variation in physical properties at the interface between weld HAZ and the parent metal. The max load cases of fast startup-shutown needs to be included.

"...when logic, and proportion, have fallen, sloppy dead..." Grace Slick