Hello Caesar II member,
I am attemp to modeling line from 20" discharge pump to nozzle 30" of mother liquor de-watering column.The line is installed with one elastomer expansion joint. The stiffnesses are defined from the Manufacturer as the follow;

Axial Compression :741.86 N/mm
Axial Extension : 964.25 N/mm
Lateral Movements : 900.2 N/mm
Angular Movements: 206.1 N.m/Degree
Torsional : Not Applicable/Not Available
Effective ID : not defind

The lenght of expansion is 305 mm. and weight approx. 50 Kg. Then I model this expansion joint as below;

First Element : node 11 to 12 DX = -152.5 mm.
Second Element : node 12 to 13 zero length (DX=0) and select expansion joint and input stiffness values for axial stif.= 741.86 N/mm , tran stif. = 900.2 N/mm , Bending Stif.=206.1 N.m/Degree ,
Blank for Torsion and Effective ID
Last Element : node 13 to 14 DX = -152.5 mm.


I am not sure my input model is correct or not .Please suggestion and advise me.


but

Piya Kittitanesuan
Piping Stress Engineer
Sriracha,Thailand

------------------
Piya K.