Error with CBEAM's for lattice based geometry
Hi,
I am attempting to create a lattice structure using CBEAM's. I have created a box geometry and filled it with CBEAM's. This was achieved by solid map meshing, then using the mesh to create CBEAM's. However, I have now applied some BC's and when I run my model I get the message:
*** ERROR # 1203 *** in the input data:
Vector defined in fields 6 - 8 has zero length.
I believe that this has something due to the orientation of by CBEAM's but because I have so many CBEAM's I'm not sure how I would correct the orientation or what to correct the orientation to.
I have attached my *.fem file. If someone could have a look I would be very grateful.
Laurence
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Glad to help.
If you are not interested in “location” of the stress recovery points you can define orientation in one go with 1D>bars>update>orientation>components and enter 1 for each x,y and z components and update local axis. If there are some elements aligned in this diagonal direction still causing error 41, slightly adjust the value in any direction.
Hi,
in the shared model no property and material were assigned. Material parameters were not defined so I have set up generic steel properties. I have also set up solid property for lvl0 component. Use Tools>Model Checker>Optistruct to find modeling errors.
https://insider.altairhyperworks.com/wp-content/uploads/2017/09/T-T-1248-HyperMesh-Model-Checker.pdf
Use the 1D>bars>update panel to update orientation (local axis). The element orientation is critical especially for noncircular, un-symmetric, or irregular sections. Orientations aligned with the beam axis are not allowed. The following document & videos might give you an idea about 1D element orientation and why it is important:
https://altairuniversity.com/wp-content/uploads/2017/03/1D_Elements_Extract.pdf
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