The OpenSees Community

With a displacement control approach.

Yes, you're right. Sorry.

Do you mean block3d command? are there more commands available?

Thank you!

Hi Silvia. I would like to use three-dimensional elements in OpenSees to take into account shear, axial and moment load effects on an RC element... but since the on-line manual does not deal with 3D-elements, I was wondering if OpenSees doesn't come with that feature out of the box. Many thanks in a...

Give me an e-mail to send you the binary files (these were compiled by Frank).

It seems you will always get a bus error if you try to run OpenSees 2.1.0 on Mac OS X 10.4.11. Probably there is a bug in the current release of OpenSees. If you are a beginner and want to start using OpenSees right now, download OpenSees 2.0.0. Or wait until next stable release of OpenSees is avail...

Have you tried to repair permissions?

Are they already uploaded?

Hi Frank... I'm thinking to learn Objective-C in order to exploit all features available in both OpenSees and Mac OS X, and then adapt them to a large research at Universidad del Norte... My question is if I can employ Objective-C to expand/modify pieces of code in OpenSees... I've read that mixing ...

Can I use OpenSees as the main finite element "software" to analyze structures at work? I've read the disclaimer, but I'm not sure at all if I have permission to use it in this way.

Many thanks in advance!

Please, post your script.

Hi. These are the correct lines:

Wsection $HEA300A 1 .29 0.3 0.014 .0085 7 1 4 1
Wsection $HE240B 1 .24 0.24 0.017 .01 7 1 4 1

(see Wsection.tcl for details)

Regards.

Thank you! I'm glad to hear that.

So this feature will be available for version 3 or before?

Hi Frank. As far I know, ---------------------- OpenSees' User Interface = OpenSees Interpreter + Tcl. ---------------------- But rather than using Tcl, do you think I could compile OpenSees using the Ruby Interpreter? (Ruby is also a high programming language). Or I will have to modify some piece o...

2.

For a linear material, E means the Young's Modulus. Yes, sigma=E*epsilon.
For a nonlinear material, E means the initial Young's Modulus.

In some cases, you can use E as the force constant, k, to define a section Aggregator or a zeroLength element. F=kx.

Please, define eta.

Likely, the problem comes from tclsh.