45 degree connections

[peipei]

Dear Mr./Mrs.
I have two questions about connections.
We are now busy with a project which has a lot of 45 degree reinforced connections. After reading the document of “T-stukken in PLE-micro-CAD” rev.7 d.d.1-11-2002, it is possible to do it for the configuration.
But according to the explanation, in the T-module it is combined with Stress intensification factor (SIF) of in and out-plane
   
In the Tee
   
However, without T-module we have to input the SXUB1 factor in table CSWEIGH. From what I understand is that
• If PHI-MB is 90 or 270 degree, then Mbi=0, MBEN=Mbo. In this case SXUB1=SIX-OP
• If PHI-MB is 180 or 360 degree, then Mbo=0, MBEN=Mbi. In this case SXUB1=SIX-IP
Question 1:
If PHI-MB is not the case above, how could I combine SIX-OP and SIX-IP to SXUB1?
Question 2:
What is the Stress intensification factor for 45 degree?
   

[shaswin]

Jens,

Is it possible to extent the helpfile with the important PLE document “T-stukken in PLE-micro-CAD” rev.7 d.d. 1-11-2002

This old document, but still important document, is no longer online available on the PLE website.

Thank you.

[Bas]

Is the PLE document “T-stukken in PLE-micro-CAD” still available?

[shaswin]

Is the PLE document “T-stukken in PLE-micro-CAD” still available?

I have added a scanned version of the analog version I had. I no longer have the original PDF file.
Note that in Ple4Win Professional v4.3.1 the SIF factors of the Tees (90 degrees) has been changed:

[attachment=795]

[Bas]

Thanks Shaswin!

[shaswin]

Dear Mr./Mrs.
I have two questions about connections.
We are now busy with a project which has a lot of 45 degree reinforced connections. After reading the document of “T-stukken in PLE-micro-CAD” rev.7 d.d.1-11-2002, it is possible to do it for the configuration.
But according to the explanation, in the T-module it is combined with Stress intensification factor (SIF) of in and out-plane

In the Tee

However, without T-module we have to input the SXUB1 factor in table CSWEIGH. From what I understand is that
• If PHI-MB is 90 or 270 degree, then Mbi=0, MBEN=Mbo. In this case SXUB1=SIX-OP
• If PHI-MB is 180 or 360 degree, then Mbo=0, MBEN=Mbi. In this case SXUB1=SIX-IP
Question 1:
If PHI-MB is not the case above, how could I combine SIX-OP and SIX-IP to SXUB1?
Question 2:
What is the Stress intensification factor for 45 degree?

I finally got the answer for both questions doing some maths today:

SXUB1=i_combined=SQRT((i_inplane*COS(PHI_MB))^2+(i_outplane*SIN(PHI_MB))^2). The i_inplane and i_outplane are from a normal tee (90 degrees) calculation.

Is it possible to implement this weiging factor by default in PLE when there are branching connects in the system with an T-angle which is not 90 degrees?

I think then that the weakened parts of the pipe at the connects are taken correctly into account in the stress calculations.

Also the hole in connect which can be oval (depends on the connecting angle) should be taken into account in the ovalisation and redistibution calculation.