Multiple right-hand sides

[TUDoR]

Hello,

I'd like to build multiple right-hand sides during execution of my user element and solve
the linearized (global) system of equations for each right-hand side. Is there any way to
do that with FEAP (v 8.3.19)?

[FEAP_Admin]

FEAP can sort of do this but depending on the details you may need to make some modifications.
If you use
tang
form
solve
form
solve

then you get one factored tangent matrix.  For each form you get a right hand side that can be solved using the solve command.  What you will need however is to set it up so that each form generates the RHS that you want.  Probably you
will want to write a user macro subroutine umacrXX.f to help get what you want.