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Found 5 results

  1. Hi, I have split my geometry using the trim panel. I did this with a surface. Can anyone tell me why the section that has not been given a mesh in my .fem not mappable? I get the message "non-mappable(2) along-faces form 0 loops need 1." I'm guessing I have to split the geometry further but I'd like to know why this has happened. Thanks, Laurence Actuator_forum.fem
  2. Hi all, I have a CAD file as shown in the image below. It is symmetrical about z-axis. I need to trim the CAD into half and delete surfaces in other half. Can anyone suggest the logic to select the surfaces in any half, i already have the code to split in half.
  3. Hello everyone, I am currently working on a lattice structure made of beam elements and I would like to split all those elements into two, in order to increase the mesh's density. So far I have found how to split 1-D elements by drawing a line... but considering there are close to 26 000 elements, this method is definitely not ideal here ! So my question is: is there an easy way to select all the 1-D elements and split them into two "in one click" ? Thank you in advance for your time. Matthieu
  4. Hi, I'm trying to refine a tetra mesh around a bolt hole after a topology optimization. OSSmooth only returns a mesh so I don't have any geometry, only tetra elements. I've tried using split elements but it doesn't seem to do anything as well as refine elements which apparently only works on shell elements. Any suggestions?
  5. Hello, I would like to do some lattice optimization in Hypermesh. However, I need to know if it is possible to have a different mesh size for the lattice sections compared to the solid sections. The way I understand lattice optimization in Altair is that the element size you mesh with originally will determine the average length of the lattice struts. For example; I tetra mesh my model with a size of 2, the lattice beams have an average length of 2. However, I would like to have a mesh size of 0.5 with lattice elements of length 2 (or vice versa). My game plan is to run a minimize compliance with volume fraction on my model with a penalization of 1.8 (low porosity). Then use the results of the compliance optimization to split my part into sections for a given element density threshold. I should end up with solids for the lattice elements and solids for the non-lattice elements. The lattice solid sections will then be filled with lattice beam elements from another lattice topology optimization. I want to remesh each solid individually for different lattice strut sizes and types. Contact surfaces will then be used to connect the solids together and then run the Lattice optimization. The end goal is to use mesh refinement on the non lattice sections to check the validity of my model as well as experiment with different lattice sizes. Any advice is greatly appreciated. -Eric
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