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How to connect the edges of two differents solids?

How to connect the edges of two differents solids?

How to connect the edges of two differents solids?

(OP)
Hi guys, can you help me please?
i am a new abaqus user and i would like to do this:

i have 2 adjacents solids elements (deformable), and i need to "connect" two adjacents edges so that the Uy of node's edges of the solid's 1 = Uy of neighbor node's edges of the solid's 2

i tried to do this with contraints options but it seems that is not posible to make a diplacement relationship between two edges. I achieved to do this between 2 nodes with a contraints/equation, but i have severals nodes on the edges and i don't want to make a equation for each node.

in resume i want to say:

Ux(n1) = Ux(n5); Ux(n2) = Ux(n6); Ux(n3) = Ux(n7); Ux(n4) = Ux(n8)...

*-----*-----*-----*
| solid 1 |
| |
*-----*-----*-----*
n1 n2 n3 n4

n5 n6 n7 n8
*-----*-----*-----*
| solid 2 |
| |
*-----*-----*-----*

how is posible to do this?

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