Stress Linearization, Stress Intensity and Tresca*2 results

[phodgson]

Hey,

I am performing a pressure vessel analysis using ASME boiler code Section VIII Division 2. This requires examining the stress intensity. The stress linearization software provides an average value of the stress intensity Pm + Pb, but the code requires finding the greatest intensity through a section; not an average.

However, the Tresca value is define as a measure of the maximum shear stress. Is the Tresca*2 stress result output a good approxiation of the stress intensity?

Thanks,
Pat Hodgson
Mechanical Engineer, E.I.T.
Ottawa, Canada

 

[GBor]

Pat,

I am no expert on the ASME Boiler Code. In fact, I would suggest that you consider posting this on the Mechanical Engineering Forum (forum404) or the FEA forum (forum727), but I would check to see if Strain Energy Density may be a better indication.

Garland

Garland E. Borowski, PE
Borowski Engineering & Analytical Services, Inc.
Lower Alabama SolidWorks Users Group

 

[GBor]

Looks like you got your answer and I've learned something new!

 

[phodgson]

Then it's been a good day.
Thanks