Still killing time waiting for the concrete. One week to go.
I work for an engineering and design company. It’s not uncommon for us to virtually simulate car crashes and structure stiffness on designs before they are made. Doing a counter-top design was a walk in the park for the FEA (Finite Element Analysis) guys.
The images below show the results of simulating two 200 pound loads (people) positioned on each side of the sink. The counter-top is only supported on the outer edges. We did this with and with-out reinforcement. The stresses were so small that there was no difference. Based on the results, I could reduce the thickness but I like the chunky 1.5” look.
We have another software program that optimizes designs. We are going to ask the software to give us the lightest feasible design and reinforcement placement. I’m not too excited about this anymore because I don’t intend to change anything but it’ll be interesting.
You can get the tensile strength of typical concrete here;