OpenSees, the Open System for Earthquake Engineering Simulation

About the development of the FEM module/workbench.

Moderator: bernd

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bernd
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Re: OpenSees, the Open System for Earthquake Engineering Simulation

Post by bernd » Wed Apr 03, 2019 1:54 pm

ebrahim raeyat wrote:
Wed Apr 03, 2019 1:30 pm
very thanks.

1- for GUI, i agree with you and i wanted to describe the hardness of Gui part!
2- for whole concrete structure i use beamcolumn element in opensees (like common analysis softwares) that is 2D element. but with sections we can define a mesh area with patch and add rebars with layer. this pdf can explain more:

http://opensees.berkeley.edu/workshop/O ... ug2003.pdf

for common engineering purpose we don't need mesh generation at all. only for shear wall we must generate mesh. i will study for shear wall more.
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bernd
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Re: OpenSees, the Open System for Earthquake Engineering Simulation

Post by bernd » Thu Apr 04, 2019 3:37 pm

how about the slabs?
DDM
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Re: OpenSees, the Open System for Earthquake Engineering Simulation

Post by DDM » Fri Apr 19, 2019 12:03 pm

Hello,

I found these link/documents.

https://openseespydoc.readthedocs.io/en/latest/
https://buildmedia.readthedocs.org/medi ... spydoc.pdf
http://www.joseabell.com/opensees-coming-to-python.html

The manual is complete with procedures and examples.

Is there the possibility to install Openseespy in FC with pip command without installing the full Anaconda Package?

With Opensees FEM workbench would be complete with tools for earthquake analysis....Structural engineers would like that (there are many options like pushover analysis, concrete section defined as fibers, and more)...

About slabs I think that opensees is integrated with quadrilateral elements (shells). It is a chapter dedicated in the manual (see second link)....
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bernd
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Re: OpenSees, the Open System for Earthquake Engineering Simulation

Post by bernd » Tue Apr 30, 2019 3:12 pm

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ebrahim raeyat
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Re: OpenSees, the Open System for Earthquake Engineering Simulation

Post by ebrahim raeyat » Tue Apr 30, 2019 6:53 pm

DDM wrote:
Fri Apr 19, 2019 12:03 pm
Hello,

I found these link/documents.

https://openseespydoc.readthedocs.io/en/latest/
https://buildmedia.readthedocs.org/medi ... spydoc.pdf
http://www.joseabell.com/opensees-coming-to-python.html

The manual is complete with procedures and examples.

Is there the possibility to install Openseespy in FC with pip command without installing the full Anaconda Package?

With Opensees FEM workbench would be complete with tools for earthquake analysis....Structural engineers would like that (there are many options like pushover analysis, concrete section defined as fibers, and more)...

About slabs I think that opensees is integrated with quadrilateral elements (shells). It is a chapter dedicated in the manual (see second link)....
you can install extra package with pip install command. and about mesh, i agree with you, opensees have complete command for mesh generation in it's command. only thing is, that we need a gui to draw sturcture in it and then produce opensees input file from Gui and analyse it with opensees.
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ebrahim raeyat
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Re: OpenSees, the Open System for Earthquake Engineering Simulation

Post by ebrahim raeyat » Wed Jan 15, 2020 7:22 pm

bernd wrote:
Wed Apr 03, 2019 1:52 pm

What mesh input and result output format does OpenSees uses?

All the best Bernd
now I understand your point for mesh format @bernd :D

as i know, opensees did not support any mesh format, but there is a library in python that parse gmsh .msh format for it:

https://github.com/jaabell/gmshtranslator
shahram10715
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Re: OpenSees, the Open System for Earthquake Engineering Simulation

Post by shahram10715 » Thu Jan 16, 2020 8:57 am

Dear Mr @bernd:

I have been searching to implement opensees in FreeCAD for a while. In one of the posts I saw you are looking for a binary of opensees for ubuntu. I think I can provide you the binary file. Also I made a video to instruct how to compile opensees in centOS but unfortunately it's in persian. Besides that I'm very interested in cooprate with implementing opensees solver in freecad...
Last edited by shahram10715 on Fri Jan 24, 2020 8:50 am, edited 1 time in total.
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ebrahim raeyat
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Re: OpenSees, the Open System for Earthquake Engineering Simulation

Post by ebrahim raeyat » Thu Jan 16, 2020 12:14 pm

shahram10715 wrote:
Thu Jan 16, 2020 8:57 am
Dear Mr @bernd:

I have been searching to implement opensees in FreeCAD for a while. In one of the posts I saw you are looking for a binary of opensees for ubuntu. I think I can provide you the binary file. Also I made a video to instruct how to compile opensees in centOS but unfortunately it's in persian. Besides that I'm very interested in cooprate with implementing opensees solver in freecad.
Thank you @shahram10715, it's interesting that also you are looking for this. me and shahram are Iranian.
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Kunda1
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Re: OpenSees, the Open System for Earthquake Engineering Simulation

Post by Kunda1 » Thu Jan 16, 2020 1:19 pm

ebrahim raeyat wrote:
Thu Jan 16, 2020 12:14 pm
it's interesting that also you are looking for this. me and shahram are Iranian.
Yes, it's interesting to see the ways open source and engineering attracts different people. very cool.
Welcome to the forum @shahram10715
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