Hi everyone,

In the project that I am working on, is being requested that we input the Weld Joint Quality Factor on CAESAR II. But after reading the User Manual, I was not able to find where should I input it. Does anyone have any ideia?

If we mark Seam Welded box, the Wl Factor can be inputed, but I don`t think this has nothing to do with Weld joint quality factor. It is about weld strength factor.

Thanks in advance.

Marcelo Neves

If you're talking about "e", you define this in the "Eff" field of the Allowable Stress dialog.

If you're talking about "W", you define this on the "SIF & Tee" dialog.

Hi Richard,

I am talking about Ej, from Table 302.3.4 ASME B31.3.

The Longitudinal Weld Joint Quality Factor can be understood as Longitudinal Weld joint Efficiency (Eff)?

Thanks

Yes, this is the "Eff" field on the "Allowable Stress" dialog. Read the "help text" for this field, its usage varies by Piping Code.

Hi Richard,

From Caesar Help Menu the WI factor for seam welded is explained like this for B31.1 and B31.3:

"If the B31.1 or B31.3 piping codes are active, select the Seam-welded check box to activate the Wl box. Wl (the weld strength reduction factor) is used by the software to determine the minimum wall thickness of the element."

My question is does Caesar II will calculate the minimum thickness of the element once we input value on WI factor (e.g. 0.85) for B31.1 and B31.3?

Please correct me if my interpretation of the statement in the help menu is wrong.

My thought is that this WI factor will affect the IGE/TD/12 piping code as explained below.

"If the IGE/TD/12 piping code is active, select the Seam welded check box when straight pipes are seam welded. This option affects the stress intensification factor calculations for that pipe section due to seam welded fabrication."

Many Thanks,