Proper Modeling for Expansion Joint in C2

Question

Proper Modeling for Expansion Joint in C2

MELEED (Mechanical)

(OP)

17 Nov 14 00:25

Could anyone share how to model an expansion joint with limit rod tightened on one end in Caesar II?

C2it (Petroleum) · Answer 1 · 2014-11-18 03:56:48

Read the Caesar II User Guide supplied with your software.

MELEED (Mechanical) · Answer 2 · 2014-11-20 12:19:53

RE: Proper Modeling for Expansion Joint in C2

MELEED (Mechanical)

(OP)

20 Nov 14 12:19

Thank you C2it!

howmansito (Petroleum) · Answer 3 · 2015-03-25 00:13:12

THERE IS ANY WAY TO CALCULATE THE BENDING STIFF OR THE TORSION STIFF (IN.LB/DEG) OF A RUBBER EXPANSION JOINT???, IN CATALOGS ONLY SHOWS ALLOWABLE MOVEMENTS (IN or DEG), GENERAL SPRING RATE (LB/IN), AXIAL SPRING RATE (LB/IN) AND ROTATIONAL SPRING RATE (LB/DEG), THANKS REGARD.

C2it (Petroleum) · Answer 4 · 2015-03-25 09:12:16

The simple answer to your question is, there is no way.

The only realstic route to obtain proper results for a typicl rubber EJ would be with a calibrated test rig.

There are many reasons for this, for example, the longitudinal rotational spring rate of this kind of EJ is a fuction of axial compression. It is not a constant value as would be found in a metallic unit.

However, in most cases, for the normal range of imposed movements, the forces and moments developed by a rubber EJ are so small as to be insignificant.

simon17 (Structural) · Answer 5 · 2015-05-05 19:01:48

You should contact the manufacturer for this information.

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Proper Modeling for Expansion Joint in C2