2D Mesh Boolean

Hello All,

 

I want to perform 2D mesh union operation of two set of overlapping elements. Below are the images for reference.

Here,  both mesh A and B consist of 2nd order tria elems.  Mesh A is from an older FE model built in different pre-processsor (Abaqus CAE) and Mesh B was generated within HM.  The objective is to preserve mesh-A and stitch the extra mesh region present in the mesh B to it.

I have tried using the mesh Boolean operation, but did not get any solution. Not sure if I am missing out something.

 

So, is there a way to achieve this ?  I am open to tcl scripting as well.

 

 

Thanks,

Roshan