Q. Is it possible to create a rigid-flex contact pair in Workbench?
A. Not directly. You can do it with the following procedure.
1. Create the geometry feature intended to be rigid as a surface entity in the Cad package or in DM.
2. Create an asymmetric flex-flex contact pair, designating the surface entitiy from step 1 as the target.
3. Apply constraints to the target side.
4. Use a command object to delete the underlying SHELL elements on target side just prior to issuing the SOLVE.
Note:
This procedure will create postprocessing problems without adding the environment variable "allow null results" (=1) .
The only advantage to doing this is with a large assembly model including large deflection contact and material nonlinear (i.e. hyperelastic) applications.
In these cases, the above procedure will usually enhance convergence and improve runtime.
Enhancement request #41460 has been filed to include rigid to flex contact technology in a future workbench release.
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Q. Is it possible to create a rigid-flex contact pair in Workbench? A. Not directly. You can do it with the following procedure. 1. Create the geometry feature intended to be rigid as a surface entity in the Cad package or in DM. 2. Create an asymmetric flex-flex contact pair, designating the surface entitiy from step 1 as the target. 3. Apply constraints to the target side. 4. Use a command object to delete the underlying SHELL elements on target side just prior to issuing the SOLVE. Note: This procedure will create postprocessing problems without adding the environment variable "allow null results" (=1) . The only advantage to doing this is with a large assembly model including large deflection contact and material nonlinear (i.e. hyperelastic) applications. In these cases, the above procedure will usually enhance convergence and improve runtime. Enhancement request #41460 has been filed to include rigid to flex contact technology in a future workbench release. |
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