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Hi hrodrigues;
i have encountered the some question. When i use opensees1.7.3,the "sections" work well, but not work using opensees 2.0 version. how did you solve it?

i am just download from the current examples manual: http://opensees.berkeley.edu/OpenSees/m ... nual/HTML/
the exmple 5 is located in the section 'the Original Examples Primer' of the manual.

'example 5-Three-Dimensional Rigid Frame' in the opensees example manual have 9 dynamic dofs(every floor have 3 dofs).

dear fmk
thank you very much for your help! Can you also give me some advice about the values of the parameter '$delta' and '$H' in the command 'nDmaterial J2Plasticity $matTag $K $G $sig0 $sigInf $delta $H'?
thank you very much.
best wishes.

dear silvia:
thank you for your reply! but the example 5 have 9 dof. the eigen solver should give 8 modes. but it give 4 modes only. why?

thank you again

dear fmk thank you for your valuable reply. But the J2 do not work as also. i use J2Plasticity material, I also encountered two problems:1. "nDmaterial J2Plasticity $matTag $K $G $sig0 $sigInf $delta $H", how define the $delta and $H; 2. when i use following codes the opensees do not work,...

dear silvia: i use "eigen 6" command to get the eigenvalues of three-floor frame. one floor have 3dofs due to rigidDiaphragm assumption. But the solve don't work, the error is: "BandArpackSolver::Error with _saupd info = -9999 Could not build an Arnoldi factorization.IPARAM(5) returns...

dear silvia and fmk
i have the matter about nonlinear nDMaterial Template3Dep and J2Plasticity. would you like to spend some time checking up my codes above? i also will be appreciated with you if you can give me one example about it.
thank you very much.
best wishes.

hi developers: I am simulating infill wall of frame with nDMaterial in opensees. But the nDMaterial do not work well. when i use nDMaterial Template3Dep (codes followed), one error happen: "elasticisotropicmaterial::get copy--subclass responsibility", why? What Is Wrong? wipe model BasicBu...