[snowman]

I will accept all the help I can get. Lets start with a strap of various thicknesses around a round rod, in tension. Lets get someone to model it with a computer and see where the weak points are. Thats exactly what I want to do.

Once we see the weak points of a strap around a round rod, ie crankshaft, lets modifiy it and see what does what to whatever. Thats the next point I want to make.

But first we have to establish where a strap would break and why it breaks where it does. I suggest that the strap is supported by the crank all the way around until it is tangent with the crank and at that point the maximum stress is applied, the first point where the strap is no longer supported by the crank.

THis point is very improtant. If we want to prevent the rod from breaking, we would add extra support at this point and never take away any support here.

Anyone who can contrubute a computer simulating of this stress is most welcome, otherwise we have to go with the paper "simulation"/

Gut feel is developed by experience and or simulation of a specific condition that is easily understood.