Search found 10 matches

by mugekuleli
Mon Mar 11, 2013 5:46 am
Forum: OpenSees.exe Users
Topic: Problem with zerolength element recorders
Replies: 12
Views: 3189

Re: Problem with zerolength element recorders

Hi Dr. Terzic, Sorry for my late answer. I ran the code that you modified, but the element force output (element 26 in the code, which is the spring) is all zero (except the first column, which is the load applied). P.S.: I was able to find the eigenvalues by utilizing an equivalent EPP material. I ...
by mugekuleli
Tue Mar 05, 2013 12:30 pm
Forum: OpenSees.exe Users
Topic: Problem with zerolength element recorders
Replies: 12
Views: 3189

Re: Problem with zerolength element recorders

# HyperbolicGapMaterial Pushover # units kg - m - N wipe; # clear opensees model model basic -ndm 2 -ndf 3; # 2 dimensions, 3 dof per node # Nodal Coordinates # node $nodeTag (ndm $coords) <-mass (ndf $MassValues)> #Left Deck node 1 0 11.6 # Nodes For Zerolength Element Definition node 27 0 11.6 # M...
by mugekuleli
Tue Mar 05, 2013 12:22 pm
Forum: OpenSees.exe Users
Topic: Problem with zerolength element recorders
Replies: 12
Views: 3189

Re: Problem with zerolength element recorders

# HyperbolicGapMaterial Pushover # units kg - m - N wipe; # clear opensees model model basic -ndm 2 -ndf 3; # 2 dimensions, 3 dof per node # Nodal Coordinates # node $nodeTag (ndm $coords) <-mass (ndf $MassValues)> #Left Deck node 1 0 11.6 # Nodes For Zerolength Element Definition node 27 0 11.6 # T...
by mugekuleli
Mon Mar 04, 2013 7:14 pm
Forum: OpenSees.exe Users
Topic: Problem with zerolength element recorders
Replies: 12
Views: 3189

Re: Problem with zerolength element recorders

Dr. Vesna, Thank you for your reply. I ran a pushover analysis on the Hyperbolic material independently. It turned out with the following error: WARNING bandgenlinlapacksolver::solve() -LAPACK routine returned 1 DisplacementControl::newStep<void> - failed in solver StaticAnalysis::analyze() - the In...
by mugekuleli
Mon Mar 04, 2013 3:09 pm
Forum: OpenSees.exe Users
Topic: Problem with zerolength element recorders
Replies: 12
Views: 3189

Re: Problem with zerolength element recorders

Could this be an issue of the units in recorder? Because the ultimate passive resistance force [Fult] unit in the input of hyperbolicgapmaterial is in terms of [force/m] which means [per meter of abutment width] as indicated in the following page: http://opensees.berkeley.edu/wiki/index.php/Hyperbol...
by mugekuleli
Mon Mar 04, 2013 2:46 pm
Forum: OpenSees.exe Users
Topic: Problem with zerolength element recorders
Replies: 12
Views: 3189

Re: Problem with zerolength element recorders

Dr. Terzic, I appreciate your quick response. I was able to record the force, after I posted my problem here. But this time the forces are smaller than they should be, where the displacements are correct. For instance, I recorded a peak force about 500 kN, but it should be about 7500 kN. So, I went ...
by mugekuleli
Sun Mar 03, 2013 5:55 am
Forum: OpenSees.exe Users
Topic: Problem with zerolength element recorders
Replies: 12
Views: 3189

Problem with zerolength element recorders

Hi Dr. Terzic, I am having a problem with getting the hysteresis of a Hyperbolic element. I have defined the material and recorders like this: ------------------------------------------------------------------------------------------- node 1 0 10.7 node 21 87.2 10.7 node 27 0 10.7 node 28 87.2 10.7 ...
by mugekuleli
Tue Jan 15, 2013 1:07 pm
Forum: OpenSees.exe Users
Topic: Question about pushover
Replies: 2
Views: 791

Re: Question about pushover

Thank you for the reply. I solved my problem by using equalDOF at the nodes where I want same displacement and defining the load with "load" command.
by mugekuleli
Sun Jan 13, 2013 11:40 pm
Forum: OpenSees.exe Users
Topic: Question about pushover
Replies: 2
Views: 791

Question about pushover

Hi all, I have a backwall-embankment system (3D) where soil is surrounded by a steel box. The backwall behavior mode is shear. I want to perform a pushover analysis. The maximum horizontal displacement (X) is 0.15m. Since the behavior mode is shear I need to apply the displacement to all wall nodes ...
by mugekuleli
Wed Nov 07, 2012 11:04 pm
Forum: Soil Modelling
Topic: SSI Problem - Error message
Replies: 0
Views: 10339

SSI Problem - Error message

Hi, I recently started to use OpenSees soil materials. I'm trying to model a very simple SSI problem between a wall and soil. I followed the steps explained in "Excavation Supported by Cantilevered Sheet Pile Wall". As a result I was able to complete gravity analysis with "InitialStateWrapper" succe...