About five months ago I started with a steel wheel in PrePoMax. There you can find more information about the design and model setup. Now i reused these wheel geometry and prepared a new mesh…
Author: Peter Grosse
A chain is only as strong as its weakest link
Some month ago I prepared a geometry from a rest of a bicycle chain in FreeCAD. I used only a caliper to measure the dimensions. Because I really wanted to test the nonlinear contact in…
Happy Easter
I have found an Easter egg in FreeCAD. And thanks to FEM workbench in FreeCAD, the egg is even colorful. It was not so easy to find, because who actually knows how an egg is…
Steel wheel in PrePoMax
Keep the wheels turning. A steel wheel with shell elements has been on my list for a long time. In the past, I always had only aluminum rims with solid elements in the simulation (see…
Wind turbine hub calculation in Fatlab (PrePoMax results)
Finally, my CalculiX interface in Fatlab now works also for more complex results from PrePoMax. The following video shows a complete fatigue calculation run of a simple hub in Fatlab with PrePoMax (Calculix) results. I…
FreeCAD FEM results in Fatlab
If you have a simple model and load you can directly use FreeCAD FEM workbench results in Fatlab. In the previous post I had introduced the newly implemented interface to use CalculiX results in Fatlab…
PrePoMax / CalculiX results in Fatlab
I show my first implementation of a model and unit stress interface for PrePoMax / CalculiX results in Fatlab. Now I am able to import the calculated FEM mesh model from the CalculiX ccx input…
Wind turbine hub calculation in PrePoMax
I would like to calculate the finite element stress of a 5MW wind turbine hub for a fatigue calculation in Fatlab and I came across PrePoMax. PrePoMax is an open-source pre- and postprocessor for an…
Wind turbine hub fatigue calculation in Fatlab
I used the latest Fatlab version from https://sourceforge.net/projects/fatlab/ and customized it a little bit. If you need more information about Fatlab then check also http://fatiguetoolbox.org. First of all I ported the Fatlab version 2.070 to…
The temperature is still rising!
Normally, I evaluate measured strain time series to calculate a stress range spectra or the damage. But today I evaluated the temperature rise with Julia (https://julialang.org/), because I wanted to know where we are at…