Reply To: Ls-Dyna model total stiffness

[Reno Genest]

Hello Fady,

You should be able to output the stiffness matrix as follows:

"

you can get the stiffness matrix, the mass
matrix, the nodal information to map the rows of the independent system to
the nodes and rigid body center-of-masses, and the unscaled eigenvectors.
See MTXDUMP (2nd field, 2nd line of *CONTROL_IMPLICIT_SOLVER)
and EVDUMP (6th field, 2nd line of *CONTROL_IMPLICIT_EIGENVALUE)."

 

Let me know how it goes.

 

Reno.