We have an exciting announcement about badges coming in May 2025. Until then, we will temporarily stop issuing new badges for course completions and certifications. However, all completions will be recorded and fulfilled after May 2025.

Ansys Learning Forum › Forums › Installation and Licensing › Ansys Products › Ls-Dyna model total stiffness › Reply To: Ls-Dyna model total stiffness

March 27, 2024 at 12:24 am
Reno Genest
Ansys Employee

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.