The OpenSees Community

Professor McKenna and Moderators I have been trying for long time to translate the 1D consolidation example (http://opensees.berkeley.edu/wiki/index.php/One-dimensional_Consolidation) into python. So I decided debugging the source code (version 6737) and here are my findings: Though it is stated cle...

Hello again Samergendy For the Python issue you reported, I guess that you have not installed python3 at the default location. Open "Solution Explorer". Open the properties of the "OpenSeesPy" project. At "Configuration Properties" -> "C/C++" ->"General&q...

Starting with the latest solution provided in the repository saves you a lot of work. For the check out version 6701 of the OpenSees.sln do the following: Open "Solution Explorer". At the "algorithm" filter, inside "analysis" project, add the following existing files: \...

Dear moderators.
Moderator aschellenberg is doing great job keeping up to date Visual Studio projects OpenSees, OpenSeesTk and OpenSeesPy.
However projects OpenSeesSP and OpenSeesMP have not received the same treatment. Are there any plans in updating them also?

Kind regards
Chris S.

Dear Frank and moderators As in r6554 revision, please consider including in the file \SRC\Makefile, at the definition of MATERIAL_LIBS the following lines: $(FE)/material/nD/UWmaterials/PM4Silt.o \ $(FE)/material/nD/UWmaterials/J2CyclicBoundingSurface.o \ Also, Cygwin inserts a macro named quad, th...

Dear moderators, my apologies if I'm posting in wrong section. When OpenSees is compiled with 64 bit gcc (Linux or Cygwin) the initial message of the tcl interpreter indicates that the architecture is 32bit. The bug, though insubstantial, caused me great frustration, as I am a Linux novice. As Theod...

Tcl scripts are used to define the problem. In case you don't like Tcl, nowadays Python is an option (http://www.joseabell.com/opensees-coming-to-python.html).

I'm having trouble understanding the behavior of a RC structure I have modeled with forceBeamColumn elements with fiber sections. The beams lie on a rigid diaphragm and I would expect relatively small axial forces to appear. Analysis results show substantial axial forces. I did a simple test: A sing...

Following the discussion in the previous post: http://opensees.berkeley.edu/community/viewtopic.php?f=2&t=63386. I have not fully comprehended the procedures used in the source code but I believe I have found some more errors: Assuming that the $r values, used with PIMY & PDMY materials, ref...

Dear Soheil You have spotted correctly the problematic line of the source code. And you have proposed a rewrite that makes the source code in agreement with the documentation. However in my original post I argued that both source code and documentation had mistakes. I have reworked the proof, this t...

The von Mises criterion is independent of mean stress (a cylinder). The given equation gives bigger shear strength for bigger mean pressure (like a cone).

I tried the dropbox link in another computer and it works (had to wait several seconds for it to load) .

In the documentation of PressureIndependMultiYield Material (note 1) the shear strength is related to angle of friction (and cohesion). It is also stated that "the yield surfaces are of the Von Mises type". There seems to be a contradiction. I did some research on this and my findings can ...

The examples at http://opensees.berkeley.edu/wiki/index.php/Examples are a great source of information. I'm vary thankful. Because I try to learn OpenSEES by myself, I'm not vary confident. So I search for extra resources. In your presentation about the Geotechnical Examples (page 5) at OpenSees Day...

While I was searching for GiD & OpenSEES I have come up to the following links: http://www.ce.washington.edu/~geotech/opensees/ & http://geotechnical.ce.washington.edu/opensees/ :( Both of them are not working. Does anyone know if the content is still online at another location? Any chance s...