Pipe question!!

Hi, all!!

Please, see below images,

1.

2.

As you can see from the images, I am working on the physical bending pipe model definition,

and here is the problem where the pipe touching...it shouldn't go inside each other,

other words, it should offset with pipe diameter distance.

I tried to use 'Delaunay Mesh', then create surface and offset only outer curve on the surface..

it doesn't work properly at the moment,

I just wondering, is there any easy way to do this?

Thanks for your help all times!!!!!!!!!!!!