Notation in the SSI input file for SubDYn

Wind & Water Computer-Aided Engineering Software Tools
1

Hi,
I think I understood what is the notation to represent the soil stiffness in the SSI input file, but I would like to be certain of it.
I looked for these info in here and here, but I did not find them

So, this is my interpretation:

Kxx = reaction force in the x direction for a displacement in the x direction
Kxty = reaction force in the x direction for a rotation around the y axis
Ktytx = reaction moment around the y axis for a rotation around the x axis

Is this correct?

Many thanks

2

Dear @Maurizio.Collu,

Yes, your understanding is correct.

Best regards,

3

Thanks, @Jason.Jonkman.

Any reason why a “t” has been chosen for rotation? It may be useful to remember it…

Kind Regards

4

Dear @Maurizio.Collu,

I believe that “t” is short for angle “theta”.

Best regards,

5

Makes sense!
Thanks @Jason.Jonkman