Div. 2 allowable stress criteria

[esce]

I am doing an FEA on a flange using solid elements for the flange and beam elements for the bolts. When classifying
the stresses using Div. 2 criteria, what allowable stress should I use for the beam elements?

Thanks.

ESCE, Inc.

http://esce.freeservers.com

 

[stefa363]

Esce,
you can check with ASME II Part D Table 3, if it is a material considered in ASME VIII Div.2 Table 3.A.8. I hope this could help you.

Regards

 

[jte]

A beam (and solid) element can be in primary or secondary membrane (tension) or bending. The type of element you as the analyst choose to use does not impact stress classification.

You wouldn't argue that no primary bending exists in a model simply because an analyst chose to use exclusively solid elements with only translational degrees of freedom, would you?

More importantly, how do you define "failure" of a bolted flanged joint?

jt

 

[esce]

Thanks for your input fellows.

ESCE, Inc.

http://esce.freeservers.com