Working with several materials simultaneously
Hello! Im Santiago Puerto, student of engineering from the Universidad Distrital Francisco José de Caldas - Bogotá - Colombia.
This is my first Sfepy implementation, i wonder if a FEM mesh can contain multiple material ids (with different physical properties each one). My project is an asphalt mixtures aging simulator, i use X-Ray CAT images to reconstruct an asphalt mixture sample, then run a scaling and segmenting process in order to store the model in three dimensional numpy array. Now im working to transform the digital reconstruction on a FEM mesh but i don't want to lose the material detail (Identifying the material from the mixture, it's position and properties) gained with the X-Ray CAT images processing.
Hello Santiago
On 09/27/2014 07:01 AM, Santiago Puerto wrote:
Hello! Im Santiago Puerto, student of engineering from the Universidad Distrital Francisco José de Caldas - Bogotá - Colombia.
This is my first Sfepy implementation, i wonder if a FEM mesh can contain multiple material ids (with different physical properties each one). My project is an asphalt mixtures aging simulator, i use X-Ray CAT images to reconstruct an asphalt mixture sample, then run a scaling and segmenting process in order to store the model in three dimensional numpy array. Now im working to transform the digital reconstruction on a FEM mesh but i don't want to lose the material detail (Identifying the material from the mixture, it's position and properties) gained with the X-Ray CAT images processing.
Yes, it is possible. What mesh format do you use? You can specify both cell (element) groups and vertex (node) groups. Those can be then used to define regions.
However, for you application, you may want to use material definition by function instead, see [1].
Let us know if you need more help.
r.
[1] http://sfepy.org/doc-devel/users_guide.html#defining-material-parameters
participants (2)
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Robert Cimrman -
Santiago Puerto