The OpenSees Community

Hi,

Does anybody know anything about the current status of Dafalias Manzari constitutive model in OpenSees and OpenSeesSP 2.4.0? Does it work or not?

Thanks for any comment, in advance!

At this moment the Manzari-Dafalias models is under development and therefore not operational.
We plan to complete its implementation in the next couple of months.

The ManzariDafalias model does not currently work. It's still under development, but isn't really a priority at the moment.

I think that the CycLiqCP model is included in 2.4.0 (not 100% sure though), so you may be able to use that model as an alternative to the PressureDependentMultiYield models if it is available. The contributors of that code have some documentation on the OpenSeesWiki and there is a paper that discusses their formulation. I've tried it out and it seems to work as intended.

Chris McGann
University of Washington
Civil & Environmental Engineering

So , how can we use this model in Opensees ? use older version ?

Which versions of OpenSees include the Dafalias-Manzari model? How can i find this by myself?

look at the source code and then look at the logs to find when the revision number in OPS_Globals was changed.
http://opensees.berkeley.edu/WebSVN/lis ... runk%2FSRC

Dear all,

I would like to ask if anybody used Dafalias-Manzari model with mumps solver. I am trying to use it and having issues about the speed and convergence.

I am linking another topic in order not to duplicate the issue.

http://opensees.berkeley.edu/community/ ... 24#p101624

Thanks,

Ozgun