Force per unit length measurement?

Hello,

Welds calculations.

We are able to calculate a Resultant force on a boundary between 2 volume regions.

What about a force per unit length measurement along a boundary? It would be a graph.

The issue is that the integral of forces could be zero or a small number.

I could break a structure into a large number of volume regions but it is clear that the pre processing effort is significant.

Any thoughts?

Thanks