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#18089 - 05/19/08 01:21 AM welded and bolted connection
raja Offline
Member

Registered: 03/29/08
Posts: 22
Loc: india
Dear Sir,

How to differentiate the bolted connection from welded connection. When i model the pipe routing along with equipment model, some piping are coneected with equipment with welding and some are connecting with flange(Bolted). In this case how i model/connect with anchor and Cnode. Please clarify?

Regards

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#18090 - 05/19/08 02:39 AM Re: welded and bolted connection [Re: raja]
Omdo Offline
Member

Registered: 03/19/08
Posts: 31
Loc: Indonesia
raja,

you are asking bout how to model pipe with flange connection? you may get the information from coade help. to make it easier for you:

10-20 pipe
20-30 rigid(not to forget to fill out the weight)& click restraint, anchor type with node 30 cnode 31 (or you may fill whatsoever number you like)
31-40 rigid
40-50 pipe

next time you better ask your peer and senior within your teamwork


cheers


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#18153 - 05/21/08 04:31 AM Re: welded and bolted connection [Re: Omdo]
raja Offline
Member

Registered: 03/29/08
Posts: 22
Loc: india
i am not asking how to model flange?
Pl see my question indicated above.


the diff between flanged connection and welded connection?how this things affect the stress analysis?


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#18159 - 05/21/08 06:11 AM Re: welded and bolted connection [Re: raja]
Sam Manik Offline
Member

Registered: 04/02/08
Posts: 231
Loc: Jakarta, Indonesia
Dear Raja,

Caesar did not consider welded connection between pipe to pipe. We can assume it is homogen. To find the reason you can read about the strength of welding joint relative to base material in such relate books. For the line pipe welded to to reducers, flanges, valves, there is SIF for each of them. SIF has effect to the stress in that welding location. See the formula relate to that (nodes).

For bolted connection in flange for example, we just need to put node at the interface of both (located it the face). We can predict the flange (with bolted connection mentioned) fail/pass by taking the load at this node and input to another calculation. But in new version of Caesar we can solve it in line.

I am not sure if this the answer you want to.


Edited by Samsul P. Manik (05/21/08 06:20 AM)
_________________________
Many thanks & regards,
Sam Manik

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