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by ebrahim raeyat
Thu Apr 02, 2020 2:34 pm
Forum: FEM
Topic: 1/2D element like membrane, plate, truss?
Replies: 20
Views: 666

Re: 1/2D element like membrane, plate, truss?

How can i recognize which 1D section element is for which element? i have two beam_section object: self.beamsection_objects = [{'Object': <Fem::FeaturePython object>, 'RefShapeType': 'Edge'}, {'Object': <Fem::FeaturePython object>, 'RefShapeType': 'Edge'}] i think i can obtain it, but a little compl...
by ebrahim raeyat
Thu Apr 02, 2020 12:22 am
Forum: FEM
Topic: OpenSees, the Open System for Earthquake Engineering Simulation
Replies: 152
Views: 8258

Re: OpenSees, the Open System for Earthquake Engineering Simulation

@bernd. I want to prepare such a software at the end of this process:

what is your opinion for apply BIM in FEM WB? how can we apply that?

http://open-bim.en.cype.com/
by ebrahim raeyat
Thu Apr 02, 2020 12:16 am
Forum: FEM
Topic: 1/2D element like membrane, plate, truss?
Replies: 20
Views: 666

Re: 1/2D element like membrane, plate, truss?

for this example we would not need some new element choosing object. IMHO the user should define a shell thickness for the wall and a creoss section for the beams and columns. Than the writer should do the rest. But the writer does not do it ATM. I started mixed mesh some time ago but it is not yet...
by ebrahim raeyat
Thu Apr 02, 2020 12:13 am
Forum: FEM
Topic: 1/2D element like membrane, plate, truss?
Replies: 20
Views: 666

Re: 1/2D element like membrane, plate, truss?

As said befor ATM this is a one line change in calculix input file. If this should be done by the user in the gui we need a new element choosing object as disscussed earlier in this topic. bernd Thanks bernd, i don't want to add additional element, only some extra properties for 1D element. for exa...
by ebrahim raeyat
Wed Apr 01, 2020 3:04 pm
Forum: FEM
Topic: 1/2D element like membrane, plate, truss?
Replies: 20
Views: 666

Re: 1/2D element like membrane, plate, truss?

how about truss element? i mean element with first and end moment release and torsion release. all solvers have a such element, how can we distinguish this in fem wb? thanks.
by ebrahim raeyat
Wed Apr 01, 2020 2:51 pm
Forum: FEM
Topic: 1/2D element like membrane, plate, truss?
Replies: 20
Views: 666

Re: 1/2D element like membrane, plate, truss?

@bernd. for example a dual system, frame with shear wall. we must divide frame element to join with shear wall at the common joints.
mesh_shell_1D.png
mesh_shell_1D.png (7.36 KiB) Viewed 211 times
by ebrahim raeyat
Sun Mar 29, 2020 5:28 pm
Forum: FEM
Topic: 1/2D element like membrane, plate, truss?
Replies: 20
Views: 666

Re: 1/2D element like membrane, plate, truss?

Thanks @bernd, I know it, but i mean in general. when i have 2D also element with 1D in one model.
by ebrahim raeyat
Sun Mar 29, 2020 10:06 am
Forum: FEM
Topic: 1/2D element like membrane, plate, truss?
Replies: 20
Views: 666

Re: 1/2D element like membrane, plate, truss?

thanks @bernd. i want to analyse frame structures, like portal frame. but i don't know how can i mesh this portal frame that it would be only contain 4 nodes and 3 beam-column elements. i think it is very necessary for civil engineering.
portal.png
portal.png (2.4 KiB) Viewed 257 times
portal.FCStd
(30.79 KiB) Downloaded 5 times
by ebrahim raeyat
Fri Mar 27, 2020 11:17 pm
Forum: Open discussion
Topic: Adding Remote repositories in git
Replies: 23
Views: 485

Re: Adding Remote repositories in git

Thanks @bernd, i send you a PR. my dev branch is opensees, i will delete other branches. I deleted origin opensees and write all commits with one, and then push that. from now, i will try to continue development and send you PR. I know I took your time very much, thank you for your patience. I had b...
by ebrahim raeyat
Thu Mar 26, 2020 8:36 am
Forum: FEM
Topic: FEM Python coding standard
Replies: 74
Views: 18217

Re: OpenSees, the Open System for Earthquake Engineering Simulation

bernd wrote:
Thu Mar 26, 2020 5:34 am
double posted! Is solved here https://forum.freecadweb.org/viewtopic. ... 70#p380760
yes, i prefer to solve this in related topic. if you can please move those to related topic. thanks.

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