Force/Moment variation on fatigue analysis

[manaliac]

Hello everyone,

I am working on wave induced fatigue on a pipe under Caesar II. My loadcases are :

1 (OPE) W+D1+D2+T1+P1+WIN1+WAV1
2 (OPE) W+D1+D2+T1+P1
3 (FAT) L3=L1-L2

I woulk like to know how I can generate on output the force/moment variation on my nodes/elements? I am not sure that general element forces extended are the correct answer.

Please could you give me the procedure to follow to compute the force/moment variation?

thank you,
M.

 

[DSB123]

Hi Manilac,
You do not have enough load case combinations to cover fatigue. Also yopu mention Wave loads as the only fatigue loading- what about the wind? Also remember waves can come from any points of the compass and at any height.

 

[manaliac]

Hello DB123,

Each wave orientation and wave height are taken into account (you change your input data each time) for the three loadcases.

Could please write to me where I could find the output describing the force/moment variation.

Thank you,

M.

 

[manaliac]

Hello DB123,

Each wave orientation and wave height are taken into account (you change your input data each time) for the three loadcases.

Could please write to me where I could find the output describing the force/moment variation.

Thank you,

M.