PROJECT-01 SUBTSTRATE STRUCTURAL MESHING USING BATCH AUTOMATIC MODULE
JORGE LOZANO
Preprocessor for Structural Analysis using ANSA
PROJECT-01 SUBTSTRATE STRUCTURAL MESHING USING BATCH AUTOMATIC MODULE
For the given component, check for the geometrical errors and mesh with the given element Quality criteria. After meshing the component, the thickness must be assigned.
Write a detailed report on your meshing process and mention which method you used to extract the mid-surface along with the reason.
F.1 Quality criteria surface mesh.
Procedure
To begin with the meshing procedure first is necessary to open the ANSA file which contains the CAD geometry, with all the geometry errors, and unchecked coons or surfaces, we proceed to refine the mesh length in the edges and return to the TOPO window which defines as seen in F.2 the types of conns and crossed surfaces. In Fig. 1, the surface mesh requirements given must be followed to obtain good results and fast calculations.
F.2 Original plastic substrate geometry.
In F.3 shows the selection for the surface mesh length over the edges in which only for visualization its adjusted to 1mm obtaining a good resolution to perform the offset from all surfaces.
F.3 Edge length configuration
F.4 shows the Surface mid-planes obtained from the offset method which according to the method used to simulate the system the surface will be bidimensional with a thickness applied to the setup, as in F.5 the section shown represents the tridimensional geometry into the surface along the thickness properties according to the PIDs visible by colors.
F.4 Complete Surface offset mid-plane
F.5 Section mid-plane
To perform the mesh using the Batch tool manager, in which in F.6 shows the interface in which the mesh conditions to obtain are given as the mesh parameters and the quality criteria which for this case were given at the global initial conditions, as well as if it’s a surface mesh, volume or warp meshing, due to the considerations from the Match mesh manager to calculate the mesh, the off surface elements obtained are considerably less than both last two methods, having a considerably less amount of time from the user to fix the quality mesh.
F.6 Batch mesh manager
The automatic mesh performed by the batch surface mesh, appears to have off elements according to the quality mesh parameters given by the user, that by using the negative view by colors each quality range given.
F.7 Initial negative off elements view
Once all surfaces have been meshed even if there’re off elements the important step to release the coons or surface mid-plane from the FE-model that facilitates to arrange the good quality surface mesh, as in F.8, hiding the surface and only showing the mesh.
F.8 FE- model negative view release
Once all surface meshes have been arranged into the quality parameters given all coons or PID’s must be separated or classified by the thickness within the property given and the name to be better recognizable, as inF.9.
F.9 PID’s properties
F.10 shows sections for the finish surface mesh with the proper thickness applied, and by using the FE mesh to model geometry appearance, I obtained a visual representation of the pre-process elements that will be simulated verifying the result for the mesh.
F.10 Tridimensional surface mesh thickness visualization
Conclusion
As conclusion, according to the quality conditions at table in F.1, I was able to obtain a great quality surface mesh, applying the modules and tools by obtaining a batch automatic mesh and offset selection, and performing the pre-processing section for a simulation, by having a complete mesh as Fig. 11, seeing the thickness property visualization as in F.10, and deciding the performance for the simulation desired which is great for this system.
F.11 Complete surface mesh