Mustansiriyah University
Question
Asked 24th May, 2019
How do I evenly mesh a cone with Abaqus?
I am modelling a cone (3D revolve of a triangle) on a block to test stress of 10N of concentrated force of tip of the cone. Theoretically, the stress values should be equal when applied at a 90 degree angle to the tip in the x and z planes, but there is variation. I'm assuming this is because the mesh is uneven. The first picture is of the model.The second and third are my attempts to make an even Tet mesh with no success. I partitioned at 22.5 degrees around the cone and seeded the bottom edge of the cone as well as the partitions as a last ditch effort. The last picture is what a Tet mesh looks like with the defaults. Does anyone know how to make an even mesh for a cone?
Most recent answer
Revolving the traingle (half section of cone).
All Answers (4)
Hi Emily Carr , use the rotation feature. Take a cross-section of the cone AND the plate, then rotate the section about the cone axis to create a 3D mesh. Yes, you would end up with a circular plate instead of rectangular/square plate. This is too avoid local mesh effects near to the base of the cone. Later you morph or modify the circular plate to rectangular/square plate easily.
Technische Universität Braunschweig
Did you use linear or quadratic tets? Linear tets are very stiff in bending, even with a fine mesh results can be quite wrong, so they are very sensitive to the mesh density.
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