The OpenSees Community

mhscott wrote: ↑Tue Aug 10, 2021 4:35 pm Yes, search online for OpenSees multiple support excitation.

Thanks for your reply. Best wishes.

That sounds great. Did you code the new functions in the source code? If so, you can approach Frank McKenna and Michael Scott for potential implementation of your functions in the standard OpenSees version Thanks for your advice. I found that OPENSEES stores the tangential stiffness of the element ...

Hi All, According to my knowledge, the uniform excitation can be achieved in Opensees by calling the "UniformExcitation" sentence. But if I wanna simulate the earthquake cases with non-uniform excitation, that is, considering that the ground motion excitation of the earthquake at different...

Thanks all. I have solved the aforementioned problem by coding new functions in Opensees.

mhscott wrote: ↑Mon May 17, 2021 6:28 am This recorder option is not implemented for all elements. Which element are you using?

Hi Scott,
Thanks for your response. The element I used is Displacement-Based Beam-Column Element.
Xu

Hi Scott,
Thanks for your response. The element I used is Displacement-Based Beam-Column Element.
Xu

Hi All, I wanna extract the stiffness matrix in the transient analysis of the concrete-filled steel tube in each tiny time step. And I found the "basic stiffness" command is valid in the 2D model. I found it not useful anymore in the 3D model, however. In detail, the corresponding script a...

Hi Semiguna

It does like that. I found that there are some problems occurred in my reloading and unloading part so that the overall stiffness matrix cannot be decomposed by PLU. Now I had solved it already. Thanks anyway.

Best
Xu

Hi all, I used VS2010 to create a new dynamic link library(DLL) file for the uniaxial material class and successfully invoked it in opensees. Now I want to draw a simple load-displacement curve of the column structure with this new uniaxial material, and the solver reported an error during the analy...

Hi Adel

Did you solve this problem? I have the same trouble now.

Thank you

Xu

Hi Johny

Did you solve that question? I have the same trouble now.