Learning Forum

[deepesh.p.gurdasani]

I want to use Hex mesh but for that if I have to body split the part into quite a no. of parts then I have two options, either using share topology or giving bonded contact BUT

After using shared topology, sweepable bodies that were created for hex mesh reduce by a good no.

Does it mean that shared topology and hex mesh can't go hand in hand ?

Thanks  

[peteroznewman]

Shared topology can create imprints on the faces of six-sided blocks that prevent the block from being sweepable, but you can still get a full hex mesh by using a Multizone mesh method.  Shared topology is preferred over bonded contact.

[deepesh.p.gurdasani]

[deepesh.p.gurdasani]

I tried multizone, Hex dominant as well as sweep mesh on the non sweepable bodies after share topology but it gives error and doesnt generate mesh. Any suggestions regarding this ?

[peteroznewman]

Slice the body into more pieces to eliminate the imprints on the faces of the six-sided blocks.  Insert an image of the blocks that are not meshable.

[deepesh.p.gurdasani]

Would it make much difference if bonded contact is used instead of shared topology ? 

[peteroznewman]

Don't use bonded contact in an area where you want a very accurate stress evaluation, such as near where the maximum stress is in the model.  Bonded contact is fine to use further away from the neighborhood of the maximum stress where you can tolerate some error in the stress evaluation.