Import stiffness matrix in OpenSees

[radmard]

Is it possible to use stiffness, mass, damping matrix from another program to import them into opensees and then analyze such structure Under a Time history loading matrix P?

[fmk]

it is .. look at GenericClient element is SRC/element/generic .. you might need to modify a bit based on the data you are sending/receiving from your otehr application.

[radmard]

fmk wrote:
> it is .. look at GenericClient element is SRC/element/generic .. you might
> need to modify a bit based on the data you are sending/receiving from your
> otehr application.

Dear Francis,

I think your suggestion differs to what I need because it is about changing the elements specifications during analysis.
My problem is that I only have C,K matrix and M matrix of the structure and I don't have access to the elements specifications.
Can opensees use available C, M and K matrixes and do the analysis on such structure? (No element specifications and Geometry of the structure is available).

Best regards,
Hamid.

[fmk]

not sure what you are asking.

[radmard]

Hello,
I have stiffness [K], mass [M] and damping [C] matrix in matlab (and could be exported into text files) and I need that opensees uses these Matrixes (or files) as it's input (instead of modeling the geometry and derive these matrixs from that) and performs modal analysis or time history analysis for example.
Is it possible?
Any help would be highly appreciated.

[fmk]

no .. use matlab for the analysis!