PRIMER 22.1

Generating Null Beams on Crossed Edges

Generating "Null Beams" on Crossed Edges


Generally the presence of crossed edges will require some remeshing, and this task will be performed outside PRIMER.

To make it easier to identify the edges externally you can generate "null beams" on these edges. A "null beam" normally (although you can change this) references *MAT_NULL and serves no structural purpose.

This procedure is entirely optional.

PRIMER allows you to control the following settings:

Beam Part id By default each set of null beams will be given new *PART, *SECTION_BEAM and *MAT_NULL definitions. Each will be given the "next free" label in its labelling sequence.

If you want your beams to be generated in a specific part instead then define it here.

1st beam label By default beams will be generated using the "next free" beam label onwards. To generate them starting at a specific value (eg 100001) simply define the value: this may make them easier to identify.
Add to SET_BEAM By default the beams will not be placed in any sets. They may be easier to identify, and delete later when no longer required, if in a * SET_BEAM definition. If you want to add them to one simply give its label: it will be created if it doesn't already exist.

Once any settings have been made GENERATE will create the beams. All nodes used for beams will be new nodes, starting at the "next free" node label.