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Would you please gives us more information about "getDampTangent" ? This is one of the virtual functions that needs to be implemented for a uniaxial material model but I cannot find more information about the purpose and use of this function? In a nonlinear (time history) analysis, at what...

As I understand, you have 12 degrees of freedom with mass assigned. In fact, your stiffness matrix is more than 12x12 (at a node, two translational and one rotational dof are slaved to the master node, but you still also other dofs at the node.). I am not sure what the program does for massless degr...

Silvia
I appreciate if you add them to the references in the manual. I am also planning to add my elements to OpenSees in future as well.
Regards
bulent

I have studied on this topic extensively. Here are a few references from my work: Alemdar, B. N., (2001), Distributed Plasticity Analysis of Steel Building Structural Systems, Ph.D. Thesis, Georgia Institute of Technology, Atlanta Alemdar, B.N., and White, D. W., (2005), “Displacement, Flexibility, ...

Is source code for v1.7.4 available to download? When I go to download page, and click on stable.zip or devel.zip (win32), it downloads executable (binary) file, but not the source code. I see v1.7.0 source code downloadable.

thanks
bulent

Hi

Is there any materials\documents written for OpenSees running on distributed systems?

bulent