Gaps in Midsurface

Altair Forum User · April 2016

I am a student and I am trying to run an impact analysis of a truck chasis. There are more than 100 components and I have created mid surface of all the components to do 2D mesh. I facing a problem where there are gaps. I have tried to use the extend surface option but not abler to remove the gaps. Please help me out. have attached a pic for reference.

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Altair Forum User · April 2016

I can't tell exactly what your problem is from the image, but if you want to extend a surface, I believe it has to have no mesh associated with it.

Are the gaps present because it's a different part or the same part?

If it's the same part, you should make sure that your surfaces are correct before meshing and intersect them so that the surface edge lines are all yellow / green where surfaces meet. (Red indicates a free edge).
If it's a different part then there should be a gap. You can attach the parts by creating fasteners with CBARs, CBUSHs, RBEs etc or define contact