FEM
⚡🧠A finite element Python implementation (by ZibraMax)
beso
Python code for topology optimization using CalculiX FEM solver. (by calculix)
FEM | beso | |
---|---|---|
2 | 6 | |
20 | 285 | |
- | 2.1% | |
4.4 | 4.5 | |
about 1 month ago | 3 months ago | |
Python | Python | |
MIT License | GNU Lesser General Public License v3.0 only |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
FEM
Posts with mentions or reviews of FEM.
We have used some of these posts to build our list of alternatives
and similar projects.
- Jacobian matrix for a 4 node rectangular elements
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Finite Element Heat Transfer Analysis with MATLAB
I apologize in advance for my English, it's not my main language. Do you want to code this exact problem in MATLAB? If you need this specific problem just write the global matrix and global force vector. If you want to implement a full program for heat transfer is not hard either. You must create single element matrices and vectors. Then, using a for loop you can create the global matrix just adding small matrices. Border conditions are very important. You can create a matrix of border conditions. The first column is the node in which the border condition is applied and the second column is the border condition value. You can create both essential, natural and convective border condition matrices. In the computational implementation it is not very useful to remove rows and columns of the global matrix. The reason is that your solution vector size will be different to the number of degree of freedom. That makes the process harder (and slower) (source Reddy's book). There are several methods to assign the border conditions. For example, you can extract the column with the same number of the border condition degree of freedom. Then multiply the whole column by the border condition value and subtract it to the force global vector. Last is to modify the column and row of the global matrix to 0 except the diagonal value which have to be changed to 1. The row of the force vector with the same degree of freedom has to be the border condition value. When you solve the equation system you end with the node solution. You can create graphs with these values or create better graphs using the shape functions. You can create a heat flux graph using shape functions too!! I made a Python FEM package, it has a heat transfer option. It's not Matlab, but maybe you can find it useful. Link https://github.com/ZibraMax/FEM
beso
Posts with mentions or reviews of beso.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-02-20.
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Topology Optimisation
Does this help: https://github.com/calculix/beso
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Just figured out how to do topology for freecad!
Just wanted to share my thoughts on the macro created by https://github.com/calculix/beso . I must say that I would like to thank the creators they did a very good job first off. The main thing that I wished was that someone made a video tutorial showing how to overall set everything up and view the results/ and create a design based of of these result. ( I know there is written instructions but I may make a tutorial on youtube to make it easier to understand). Was just wondering if anyone else had any thoughts on this macro or if outher people would be interested in a tutorial? Because I feel this is a very useful feature that every cad program should have.
- Shape optimization
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Shape Changing In FreeCAD
And this FreeCAD forum thread about the beso topology optimizer, which might do you what you want out of the box, or give you a good jumping-off point for your code.
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Is there a way to do generative design in FreeCAD?
Yeah it's really complicated. So far I have only found references to "topological optimization" and specifically this python module called beso and some discusion in the forums.
What are some alternatives?
When comparing FEM and beso you can also consider the following projects:
scikit-fem - Simple finite element assemblers
DynFreeCAD - Dynamo nodes for FreeCAD
anaStruct - 2D structural analysis in Python
moose - Multiphysics Object Oriented Simulation Environment
MYSTRAN - MYSTRAN is a general purpose finite element analysis solver
elmerfem - Official git repository of Elmer FEM software
section-properties - Analysis of an arbitrary cross-section in python using the finite element method.
mfem - Lightweight, general, scalable C++ library for finite element methods
topy - Topology Optimization using Python
libmesh - libMesh github repository