Search found 7 matches

by lorenzino
Wed Aug 16, 2017 8:21 am
Forum: OpenSees.exe Users
Topic: shear wall cyclic behaviour
Replies: 4
Views: 7807

Re: shear wall cyclic behaviour

Yes, it looks reasonable before failing to converge. I tried to reduce displacement increment and increase the tolerance, but it did not work.
by lorenzino
Fri Aug 11, 2017 10:42 am
Forum: OpenSees.exe Users
Topic: shear wall cyclic behaviour
Replies: 4
Views: 7807

shear wall cyclic behaviour

Hi everyone, I am trying to model a shear wall with SFI-MVLEM. I used Menegotto&Pinto constitutive model for steel and Chang&Mander for concrete. I calculated all the concrete parameters following Chang&Mander formulas, except the values of xcrnu and xcrnc (see the code later). The model...
by lorenzino
Thu Jul 27, 2017 10:46 am
Forum: OpenSees.exe Users
Topic: Problems with convergence
Replies: 4
Views: 4010

Re: Problems with convergence

selimgunay wrote: > Did you check whether the wall has sufficient strength before > non-convergence occurs. It could be possible that the response has severely > degraded or on a negative slope. If this is not the case, you can try even > smaller time steps. > > Furthermore, having convergence in th...
by lorenzino
Wed Jul 26, 2017 2:00 pm
Forum: OpenSees.exe Users
Topic: Problems with convergence
Replies: 4
Views: 4010

Problems with convergence

Hi, I am a student and I am trying to simulate a quasi-static cycled test on a shear wall. After defining the wall geometry and the materials, I define the first 5 displacement-cycle peaks in terms of wall drift ratio (in total I have 9 displacement-peaks) and the model works great, giving me reason...
by lorenzino
Sun Jun 25, 2017 2:17 pm
Forum: OpenSees.exe Users
Topic: measurement units
Replies: 2
Views: 2568

measurement units

Hello, is it possible to use european measurement units (metre, Pascal, Newton...) in OpenSees? I mean, can I just use them in the mean file (the file in which I define the geometry and materials properties) and run it or should I change some settings also in the other files (dispControl file, gravi...
by lorenzino
Wed Jun 21, 2017 11:10 am
Forum: OpenSees.exe Users
Topic: OpenSees.exe has stopped working
Replies: 5
Views: 5943

Re: OpenSees.exe has stopped working

I am trying to model a shear wall, anyway the example you send me is working. So there should definitely be something wrong with the example I downloaded.

Thank you!
by lorenzino
Mon Jun 19, 2017 2:59 pm
Forum: OpenSees.exe Users
Topic: OpenSees.exe has stopped working
Replies: 5
Views: 5943

OpenSees.exe has stopped working

Dear Mrs/Mr, I downloaded OpenSees.exe and Tcl/Tk file. After the installation, when I try to run the file Example1.SFI_MVLEM (taken from http://opensees.berkeley.edu/wiki/index.php/SFI_MVLEM_-_Cyclic_Shear-Flexure_Interaction_Model_for_RC_Walls) it says that "OpenSees.exe has stopped working&q...